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CBSE Class 10 Answered

Give two forms of energies liberated on burning of alcohol 
Asked by jassii2443 | 02 Nov, 2018, 06:35: PM
answered-by-expert Expert Answer
The two forms of energies liberated on burning of alcohol are light and heat energy.

Answered by Varsha | 02 Nov, 2018, 06:57: PM

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CBSE 10 - Chemistry
properties of ethanol ?
Asked by sneh | 27 Mar, 2020, 10:11: AM
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CBSE 10 - Chemistry
A compound 'C' with molecular formula C2H4O2 reacts with Na metal to form compound 'R' and evolve a gas which burns with pop sound. 'C' reacts with an alcohol 'A' in presence of an acid to form a compound C2H4O2.  On addition of NaOH to 'C' it gives 'R' and water. 'S' on treatment with NaOH gives back 'R' and 'A'. Identify C,R,A,S and write down the reactions involved.  
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Asked by pranjaliinamdar2004 | 29 Feb, 2020, 07:20: PM
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CBSE 10 - Chemistry
Why is unsaturated fatty acids are added in soap
Asked by sweetykhatri99254 | 27 Feb, 2020, 03:40: PM
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CBSE 10 - Chemistry
A carbon compound ‘P’ on heating with excess conc.  H2 SO4  forms another carbon compound ‘Q’ which on  addition of hydrogen in the presence of nickel catalyst  forms a saturated carbon compound ‘R’. One molecule  of ‘R’ on combustion forms two molecules of carbon  dioxide and three molecules of water. Identify P, Q  and R and write chemical equations for the reactions  involved. 
Asked by priyanshiishu | 30 Jan, 2020, 10:39: AM
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CBSE 10 - Chemistry
why soap is collidal in solution? how it does ion-ion repultion?
Asked by kamalnayansingh7 | 13 Jan, 2020, 08:35: AM
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CBSE 10 - Chemistry
how are ester formed with reaction
Asked by Deepak | 22 Dec, 2019, 11:20: PM
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CBSE 10 - Chemistry
I have a doubt in science please clear my doubt.
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Asked by ritikraghuwanshi6986 | 16 Dec, 2019, 08:42: PM
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CBSE 10 - Chemistry
The general formula of an ester where R represents an alkyl group is ? what is ans and explain?
Asked by vedantsagrawal23 | 05 Dec, 2019, 08:34: AM
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CBSE 10 - Chemistry
what is dring solution ?
Asked by aryasaxena2003 | 25 Jul, 2019, 05:35: PM
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CBSE 10 - Chemistry
Difference between toilet soaps and bathing bars?
Asked by rushabhjain.avv | 21 Mar, 2019, 10:07: PM
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