With a labelled diagram describe an activity to show the formation of an ester.

Important Questions on Carbon and its Compounds

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 1

Write an equation to represent the chemical reaction between ethanol and acidified potassium dichromate.

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 1

What is vinegar? Describe with chemical equation its reaction with sodium hydrogen carbonate.

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 2

An organic acid “X” is a liquid that often freezes in winter in cold countries, has a molecular formula

C_{2} H_{4} O_{2}

. On warming with ethanol in the presence of a few drops of concentrated sulphuric acid, a compound “Y” with a sweet smell is formed. (i) Identify “X” and “Y” (ii) Write chemical equations for the reaction involved.

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 2

(i) What would be observed by adding 5% solution of alkaline potassium permanganate solution drop by drop to some warm ethanol taken in a test-tube.
(ii) Write the name of the compound formed during the chemical reaction.

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 2

How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property.

MEDIUM

10th CBSE

IMPORTANT

Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 3

State the principle on which the cleansing action of soap is based.

MEDIUM

10th CBSE