NEET1 NEET1 Chemistry States of Matter
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Asked by Arushi Juyal
16th December 2017
8:20 AM
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NEET1 NEET1 Chemistry
800g of 40% solution by weight was cooled 100g of solute precipitated the% composition of remaining solution is
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19th April 2018
4:33 PM
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CBSE XII Science Chemistry Isolation of Elements
In Carius method, for the estimation of halogen, 0.15g of an organic compound gave 0.12g of AgBr. The percentage of bromine in the compound is (a) 34.04% (b) 66.04% (c) 44.04% (d) 54.04%
Asked by sunil2791
25th April 2018
6:50 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
When 15g of a mixture of NaCl and Na2CO3 is heated with dil HCl, 2.5g of CO2 is evolved at STP. Calculate % composition of the original mixture.
Asked by PRIYA
7th June 2018
12:28 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
calculate the percentage of the each element in 9.8g of sulphuric acid
Asked by shaileshbhagat82816
3rd July 2018
7:16 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
An iron ore sample is impure Fe2O3. When Fe2O3 is heated with an excess of carbon , iron metal is produced as per the following equation: Fe2O3(s)+3C(s)→2Fe(s)+3CO(g) From a sample of ore weighing 752 kg ,453 kg of pure iron was obtained.What is the % of Fe2O3 in the sample?
Asked by dineshchem108
15th July 2018
5:48 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
A mixture of pure AgCl and AgBr contains 60.94% Ag by mass what is % of AgCl in sample
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8th October 2018
6:44 PM
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JEE Main Chemistry Solutions
1.102 ques
Asked by lovemaan5500
30th January 2019
12:01 PM
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CBSE XII Science Chemistry Solutions
What volume of 95 percentage sulphuric acid of density 1.85 g per centimetre cube and what mass of water must be taken to prepare hundred centimetre cube of 15% solution of sulphuric acid of density 1.1 g per centimetre cube
Asked by fathimaaza26112001
6th March 2019
1:32 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
0.25gm of an organic compound in kjeldahl's method ,produced ammonia gas which was absorbed by 25ml of 0.5M H2SO4 . The residual acid required 30ml of 0.5M NaOH for complete neutralisation . find the percentage composition of nitrogen in the organic compound
Asked by satya785583
16th March 2019
8:58 PM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
Mixture of the propane and butane occupy 3 liter volume complete combustion of this mixture produced 10 liters co^2 find the constitution of this mixture
Asked by mannkhatri112
1st May 2019
7:24 AM
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JEE Main Chemistry Some Basic Concepts in Chemistry
My doubt is 50th ques Plz solve it
Asked by Mamtaraano00
2nd May 2019
10:58 AM
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NEET NEET Chemistry Some Basic Concepts in Chemistry
find the persenties o,c,h in one mole of glucos
Asked by rohithindustani56922
10th July 2019
6:47 PM
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JEE Main Chemistry Some Basic Concepts in Chemistry
Question no 29
Asked by Adityaaryan681681
30th July 2019
10:15 PM
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NEET NEET Chemistry Some Basic Concepts in Chemistry
1 g mixture of CaCO3 and NaCl reacts completely with 100 ml of N/10 HCl. The % of CaCO3 in the mixture is-(1) 40%, (2)60%, (3) 50%, (4) 80%. Also mention which is to be taken as Solute, HCl or CaCO3??
Asked by patra04011965
7th August 2019
8:57 PM
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JEE Main Chemistry States of Matter
Sir plz solve it step by step ,U may leave part (b) but plz solve explaining part(a)
Asked by vishakhachandan026
8th August 2019
10:21 AM
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ICSE X Chemistry Mole Concept and Stoichiometry
A mixture of hydrogen and chlorine occupying 36 cm3 was exploded. On shaking it with water, 4cm3 of hydrogen was left behind. Find the composition of the mixture.
Asked by aashimegh
4th September 2019
8:53 AM
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CBSE XI Science Chemistry Some Basic Concepts of Chemistry
what is the mole fraction of alcohol in 10% of alcohol w/w in water ?
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8th April 2020
3:48 PM
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ICSE IX Chemistry Language of Chemistry
calculate the percentage of phosphorus in : (a) Calcium hydrogen phosphate Ca(H2PO4)2 (a) Calcium hydrogen phosphate ( Ca(
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3rd June 2020
8:26 AM
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ICSE VIII Maths Percentage
In a school, 38% of the students are girls. If the number of boys is 1023, find the total strength of the school.
Asked by samruddhikhedkar85.8spicertl
5th July 2020
12:18 PM
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