MEDIUM
10th CBSE
IMPORTANT
Earn 100

An ester has the molecular formula C4H8O2. Write its structural formula. What happens when this ester is heated in the presence of sodium hydroxide solution? Write the balanced chemical equation for the reaction and name the products. What is a saponification reaction?

Important Questions on Carbon and its Compounds

MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 11
An organic compound “”X is an essential constituent of wine and beer. “X” is responsible for the intoxication caused by these drinks. Oxidation of “X” yields an organic acid “Y” which is present in vinegar. Name the compounds “X” and “Y” and write their structural formula.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 12

Describe along with chemical equations, what happens when

(i) Ethene reacts with bromine water

(ii) Ethanol burns in air

(iii) Ethanoic acid reacts with ethanol in the presence of sulphuric acid.

MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 13
What are esters? How are they formed? Where do they occur in nature? Give one example.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 14
An organic compound “A” of molecular formula C2H6O on oxidation gives an acid “B” with the same number of carbon atoms in the molecule as “A”. Compound “A” is often used for sterilization of skin by doctors. Name the compounds “A” and “B”. Write the chemical equation involved in the formation of “B” from “A”.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 15
Two compounds “A” and “B” have the same molecular formula C4H8O2. Compound “A” is an acid and compound “B” has a fruity smell. Suggest (i) chemical formulae and (ii) structural formulae of compounds “A” and “B”. Name the functional group of compound “B”. What name would you give to- the relationship between the compounds “A” and “B”?
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 16
Why are detergents better cleansing agents than soaps? Explain.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 17
How would you bring about the following conversions? Name the process and write the reaction involved.
(a) ethanol to ethene.
(b) propanol to propanoic acid.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 18

What is the role of metal or reagents written on arrows in the given chemical reactions?
(a)
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(b)
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(c)Question Image