FRANK Solutions for Class 10 Chemistry Chapter 11 - F - Carboxylic Acid

What are the uses of acetic acid? How to write the equation for the preparation of ethyne from calcium carbide? Get the answers in our Frank Solutions for ICSE Class 10 Chemistry Chapter F – Carboxylic Acid. Also, learn to draw the structural formula of a compound with two carbons as per the given case. Use our textbook solutions to practise MCQs, fill in the blanks and other types of questions.

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Chapter 11F - Carboxylic acid Exercise 290

Question 1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 3

Write three physical properties of acetic acid.

Solution 3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 4
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 4
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 5
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 5
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 6
What is the result of oxidation of ethyl alcohol?
Solution 6
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 7
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 7
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 8
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 8
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 9
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 9
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 10
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 10
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 11
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 11
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 12

Fill in the blank with appropriate word/words.

(i) Vinegar is a solution of about ________per cent ________in water.

(ii) The general formula for alkene and alkyne are _____ and______respectively

(iii) The catalyst used for hydrogen of vegetable oil is ___________

(iv) For artificial ripening of fruits _________is used

(v) Bayer's reagent is _________

(vi) Esterification is the reaction between carboxylic acid and ______ in presence of ____

(vii) Denatured alcohol is a mixture of _____ and _______

(viii) For test of unsaturation _____is used

(ix) In laboratory ethyne is prepared by the reaction of water an _________

(x) Two isomers of the compound having molecular formula C3H6O are __________and ________

Solution 12

(i) Vinegar is a solution of about 4 to 6 per cent acetic acid in water.

(ii) The general formula for alkene and alkyne are CnH2n and CnH2n-2,respectively.

(iii) The catalyst used for hydrogen of vegetable oil is nickel.

(iv) For artificial ripening of fruits, ethylene is used.

(v) Bayer's reagent is alkaline KMnO4.

(vi) Esterification is the reaction between carboxylic acid and alcohol in the presence of conc. H2SO4.

(vii) Denatured alcohol is a mixture of ethyl alcohol and methanol.

(viii) For test of unsaturation, bromine water is used.

(ix) In the laboratory, ethyne is prepared by the reaction of water and calcium carbide.

(x) Two isomers of the compound having molecular formula C3H6O are propanal and propanol.

Question 13

(i) Compounds having the same molecular formula but different properties are called

(a) Isotopes

(b) Isomers

(c) Isobars

(d) Allotrops 

 

(ii) The first organic compound prepared by Wohler in the laboratory was

(i) acetic acid

(ii) methane

(iii) Acetylene

(iv) Urea

 

(iii) Soda-lime is a mixture of

(a) NaOH + CaCl2

(b) NaOH + CaCO3

(c) NaOH + CaO

(d) NaOH + Al2O3

 

(iv) When sodium propionate is heated with soda-lime, the product formed is

(a) Methane

(b) Ethane

(c) Ethene 

(d) Ethyne 

 

(v) LPG contains

(a) Methane

(b) Ethane

(c) Butane

(d) None of these

 

(vi) Methane reacts with energy of chlorine in diffused sunlight to give the final product as

(a) Chloroform

(b) Carbon tetrachloride

(c) Methylene chloride

(d) Methyl chloride

 

(vii) Ethene reacts with 1% cold alkaline KMnO4 to give

(a) Oxalic acid

(b) Ethyl alcohol

(c) Acetaldehyde

(d) Ethylene glycol

 

(viii) When ethanol is heated with conc. H2SO4 at 170oC, it gets converted into ethane. In this reaction conc. H2SO4 acts as

(a) Oxidizing agent

(b) Catalyst

(c) Dehydrating agent

(d) Reducing agent

Solution 13

(i) Isomers

(ii) Urea

(iii) NaOH + CaO

(iv) Ethane

(v) Butane

(vi) Carbon tetrachloride

(vii) Ethylene glycol

(viii) Dehydrating agent

Chapter 11F - Carboxylic acid Exercise 291

Question 1999-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 1999-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 1999-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 1999-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2000-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2000-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2000-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2000-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2000-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2000-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2001-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2001-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2001-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2001-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Chapter 11F - Carboxylic acid Exercise 292

Question 2001-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2001-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2001-4
Write down the equation for the preparation of ethyne from calcium carbide?
Solution 2001-4
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2002-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2002-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2002-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2002-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2002-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2002-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2003-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2003-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2004-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2004-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Chapter 11F - Carboxylic acid Exercise 293

Question 2005-1

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Solution 2005-1

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Question 2005-2

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Solution 2005-2

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Question 2005-3

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Solution 2005-3

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Question 2006-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2006-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2006-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2006-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2006-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2006-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2007-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2007-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Chapter 11F - Carboxylic acid Exercise 294

Question 2007-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2007-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2008-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2008-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Chapter 11F - Carboxylic acid Exercise 295

Question 2008-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2008-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2008-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2008-3
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2008-4
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2008-4
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2009-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2009-1
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2009-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2009-2
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2009-4
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2009-4
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2009-5
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2009-5
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Chapter 11F - Carboxylic acid Exercise 296

Question 2009-6

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Solution 2009-6

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Question 2009-7
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Solution 2009-7
Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid
Question 2010-1

Select the correct answer from the choices a, b, c and d which are given.

(i) An organic compound undergoes addition reactions and gives a red colour precipitate with ammonial cuprous chloride. Therefore, the organic compound could be:

(a) Ethane

(b) Ethene 

(c) Ethyne 

(d) Ethanol

 

(ii) The organic compound mixed with ethanol to make it spurious is :

(a) Methanol

(b) Methanoic acid

(c) Methanal 

(d) Ethanoic acid

Solution 2010-1

(i) (c) Ethyne 

(ii) (a) Methanol 

Question 2010-2

Draw the structural formula for each of the following:

(a) Ethanoic acid

(b) But-2-yne

Solution 2010-2

(a)  

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 

(b)  

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

Question 2010-3

Compound A is bubbled through bromine dissolved in carbon tetrachloride and the product is CH2Br - CH2Br.

 Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

(i) Draw the structural formula of A.

(ii) What type of reaction has A undergone?

(iii) What is your observation

(iv) Name (not formula) the compound formed when steam reacts with A in the presence of phosphoric acid.

(v) What the procedure for converting the product of (b) (IV) back to A?

Solution 2010-3

(i) H2C=CH2

(ii) Addition reaction

(iii) Bromine solution gets decolourised.

(iv) Ethanol

(v) By heating it (ethanol) with concentrated sulphuric acid at 170oC.

Question 2011-1

Give reason as to why :

(i) Almost 90% of all known compounds are organic in nature

(ii) It is dangerous to burn methane in an insufficient supply of air.

Solution 2011-1

(i) Carbon can form a large number of compounds because of tetravalency and catenation.

(ii) In insufficient supply of air, methane burns to produce carbon monoxide which is a toxic gas. 

Question 2011-2

Choose the correct answer from the options given below :

(i) The number of C-H bonds in ethane molecule are :

(a) Four

(b) Six

(c) Eight

(d) Ten

 

(ii) The functional group present in acetic acid is :

(a) Ketonic (C = 0)

(b) Hydroxyl (- OH)

(c) Aldehydic (- CHO)

(d) Carboxyl (-COOH)

 

(iii) The unsaturated hydrocarbons undergo:

(a) A substitution reaction

(b) An oxidation reaction

(c) An addition reaction

(d) None of the above

Solution 2011-2

(i) (b) Six

(ii) (d) Carboxyl (-COOH)

(iii) (c) An addition reaction 

Question 2011-3

Choose the correct word/phrase from within the brackets to complete the following sentences :

(i) The catalyst used for conversion of ethane to ethane is commonly ________ {nickel/iron/cobalt)

(ii) When acetaldehyde us oxidized with acidified potassium dichromate, it forms _________ (ester/ethanol/acetic acid)

(iii) Ethanoic acid reacts with ethanol in presence of concentrated H2SO4 so as to form a compound and water. The chemical reaction which takes place is called ______ (dehydration/hydrogenation/esterification)

(iv) Write the equation for the reaction taking place between 1, 2-dibromoethane and alcoholic potassium hydroxide.

(v) The product formed when ethane gas reacts with water in the presence of sulphuric acid is __________ (ethanal/ethanol/ethanoic acid)

Solution 2011-3

(i) Nickel

(ii) Acetic acid

(iii) Esterification 

(iv) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

(v) Ethanol

Chapter 11F - Carboxylic acid Exercise 297

Question 2011-4

Write balanced chemical equation for the following :

(i) Monochloroethane is hydrolysed with aqueous KOH

(ii) A mixture of sodalime and sodium acetate is heated

(iii) Ethanol under high pressure and low temperature is treated with acidified potassium dichoromate

(iv) Water is added to calcium carbide

(v) Ethanol reacts with sodium at room temperature

Solution 2011-4

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Question 2013-1

Give the structural formulae for the following :

(i) An isomer of n-butane

(ii) 2-propanol

(iii) Diethyl ether

Solution 2013-1

(i) An isomer of n-butane

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 

(ii) 2-propanol

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

(iii)Diethyl ether

 

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Question 2013-2

Give reasons for the following :

(i) Methane does not undergo addition reaction, but ethane does

(ii) Ethyne is more reactive than ethane

(iii) Hydrocarbons are excellent fuels

Solution 2013-2

Reasons:

(i) Alkanes are saturated, i.e. they do not have a carbon-to-carbon double bond, and so do not undergo an addition reaction. Alkenes are said to be unsaturated because of the carbon-to-carbon double bond in their structure, and the double bond in alkenes makes them more reactive than alkanes.

(ii) Ethyne is a highly reactive compound due to the presence of a triple bond between its two carbon atoms.

(iii) Hydrocarbons are used as fuels because they burn in air producing a lot of heat energy. 

Question 2013-3

Give balanced equation for the laboratory preparations of the following organic compounds:

(i) A saturated hydrocarbon from iodomethene

(ii) An unsaturated hydrocarbon from an alcohol

(iii) An unsaturated hydrocarbon from calcium carbide

(iv) An alcohol from ethyl bromide

Solution 2013-3

Equations:

(i) CH3I + 2[H] CH4 + HI

 Iodo Methane

(ii) CH3CH2OH + H2SO4 CH3CH2HSO4 + H2O

 CH3CH2HSO4 CH2=CH2 + H2SO4

(iii)CaC2 + 2H2O Ca(OH)2 + C2H2 

(iv) C2H5Br + NaOH C2H5OH + NaBr 

Question 2013-4

Identify this statement that is incorrect about alkanes.

(a) They are hydrocarbons

(b) There is a single covalent bond between carbon and hydrogen

(c) They can undergo both substitution as well as addition reactions

(d) On complete combustion they produce carbon dioxide and water

Solution 2013-4

(c) They can undergo both substitution as well as addition reactions.

Question 2013-5

(a) Identify the gas evolved when sodium propionate is heated with sodalime

(b) Give a chemical term for a reaction in which hydrogen of a alkane is replaced by a halogen

Solution 2013-5

(a) Ethane

(b) Substitution

Question 2013-6

Give a chemical test to distinguish between ethane gas and ethane gas.

Solution 2013-6

Ethene gas decolourises the purple colour of KMnO4, whereas ethane does not decolourise KMnO4 solution.

Question 2013-7

Give balanced equation for the labortary preparation of the following organic compounds:

(a) A saturated hydrocarbon from iodomethene

(b) An unsaturated hydrocarbon from an alcohol

(c) An unsaturdated hydrocarbon from calcium carbide

(d) An alcohol from ethyl bromide

Solution 2013-7

Equations:

(i) CH3I + 2[H] CH4 + HI 

(ii) CH3CH2OH + H2SO4 CH3CH2HSO4 + H2O

  CH3CH2HSO4 CH2=CH2 + H2SO4

(iii) CaC2 + 2H2O Ca(OH)2 + C2H2 

(iv) C2H5Br + NaOH C2H5OH + NaBr 

Chapter 11F - Carboxylic acid Exercise 298

Question 2014-1

Give the structural formula of the following

(i) Ethanol

(ii) 1-propanal

(iii) Ethanoic acid

(iv) 1,2,dichlormethene

Solution 2014-1

(i) Ethanol: CH3-CH2-OH

(ii) 1-propanal

 Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

(iii) Ethanoic acid

 Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

(iv) 1,2, dichloromethene

 Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

Question 2014-2

The IUPAC name of acetylene is

(a) Propane

(b) Propyne 

(c) Ethane

(d) ethyne 

Solution 2014-2

(d) ethyne

Question 2015-1

Write the IUPAC names of each of the following :

(i)  

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 

(ii)  

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 

(iii)Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

 

Solution 2015-1

(a) Propene 

(b) But-1-yne 

(c) Ethane 

Question 2015-2

Using their structural formulae identify the functional group by circling them :

(i) Dimethyl ether

(ii) propanone 

Solution 2015-2

(i) Dimethyl ether

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 

(ii) Propanone 

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

Question 2015-3

Identify the statement which does not describe the property of alkenes:

(a) They are unsaturated hydrocarbons

(b) They decolourise bromine water

(c) They can undergo addition as well as substitution reactions

(d) They undergo combustion with oxygen forming carbon dioxide and water.

Solution 2015-3

(c) They can undergo addition as well as substitution reactions.

Question 2015-4

State the observation

When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.

Solution 2015-4

The reddish brown colour of bromine solution gets decolourised.

Question 2015-5

Name the following :

(i) Process by which ethane is obtained from ethane

(ii) A hydrocarbon which contributes towards the greenhouse effect

(iii) Distinctive reaction that takes place when ethanol is treated with acetic acid

(iv) The property of elements by virtue of which atoms of the element can link to each other in the form of a long chain or ring structure

Solution 2015-5

(i) Hydrogenation

(ii) Methane

(iii) Esterification 

(iv) Catenation

Question 2015-6

Give balanced chemical equations for the following conversions :

(i) Ethanoic acid to ethyl ethanote

(ii) Calcium carbide to ethyne

(iii) Sodium ethanoate to methane

Solution 2015-6

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Chapter 11F - Carboxylic acid Exercise 299

Question 2016-1

Give the structural formulae of each of the following :

(i) 2-methyl propane

(ii) Ethanoic acid

(iii) Butna-2ol

Solution 2016-1

(i) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

 

(ii) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 

 

 

 

(iii)  Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 

Question 2016-2

Equation for that reaction when compound A is bubbled through bromine dissolved in carbon trtrachloride is as follows :

DIAGRAM

(i) Draw the structure of A.

(ii) State your observation during this reaction

Solution 2016-2

(i) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

(ii) When bromine dissolved in CCl4 is added to ethene, the orange colour of bromine disappears because of the formation of colourless ethylene bromide. 

Question 2016-3

Write a balanced chemical equation for each of the following:

(i) Burning of ethane in plentiful supply for air

(ii) Action of water on calcium carbide

(iii) Heating of ethanol at 170oC in the presence of conc. Sulphuric acid

Solution 2016-3

(i) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

(ii) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

(iii) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

Question 2017-1

Choose the correct answer from the options given below :

If the molecular formula of an organic compouns is C10H18 it is

(a) Alkene 

(b) Alkane 

(c) Alkyne 

(d) Not a hydrocarbon

Solution 2017-1

(3) alkyne

Alkyne has the general molecular formula CnH2n-2.

Question 2017-2

Fill in the blank.

The compound formed when ethane reacts with hydrogen is _________ (CH4,C2H6,C3H6).

Solution 2017-2

The compound formed when ethane reacts with hydrogen is C2H6. 

Question 2017-3

Identify the underlined substance.

An organic compound containing -COOH functional group.

Solution 2017-3

An organic compound containing -COOH functional group: carboxylic acid

Question 2017-4

State are relevant observations for following reactant:

Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4

Solution 2017-4

On addition of ethyl alcohol to acetic acid in the presence of conc. H2SO4 at high temperature, sweet smelling ethyl acetate ester is produced, and the process is known as esterification.

C2H5OH + CH3COOH Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid CH3COOC2H5 + H2O 

Question 2017-5

Draw the structural formula for each of the following :

(i) 2, 3-dimethyl butane

(ii) Diethyl ether

(iii) Propanoic acid

Solution 2017-5

(i) 2, 3-dimethyl butane

 

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

 

 

(ii) diethyl ether

 

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

 

 

(iii)propanoic acid

 

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

Question 2017-6

Identify the term or substance based on the descriptions given below:

(i) Ice like crystals formed on cooling an organic acid sufficiently.

(ii) Hydrocarbon containing a triple bond used for welding purposes

(iii) The property by virtue of which the compound has the same molecular formula but different structural formulae.

(iv) The compound formed where two alkyl are linked by

Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid 

 group

Solution 2017-6

(i) Glacial acetic acid

(ii) Acetylene

(iii) Isomerism

(iv) Ketones 

Question 2017-7

Give a balanced chemical equation for each of the following :

(i) Preparation of ethane from sodium propionate

(ii) Action of alcoholic KOH on bromoethane

Solution 2017-7

(i) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid

(ii) Frank Solutions Icse Class 10 Chemistry Chapter - F Carboxylic Acid