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Carbon & Its Compounds

7 Board Chemistry previous year questions on Carbon & Its Compounds — options free on every question; 1 include the answer & explanation free, the rest unlock with PYQ Pass.

Q1 FREE PREVIEW

Number of covalent bonds present in methane (CH4)is -

a

4

b

7

c

10

d

13

✓ Correct answer: a)

4

Explanation

Correct answer: ✅ A. 4

Explanation:
Methane (CH₄) consists of one carbon atom bonded to four hydrogen atoms.
Each C–H linkage is a single covalent bond.

So, the total number of covalent bonds in methane is 4.

Q2

IUPAC name of ethylene is

a

Ethane

b

Ethyne

c

Ethene

d

None of these

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Q3

The chemical substance used as a cast for setting broken bones in surgery is

a

Washing soda

b

Plaster of Paris

c

Quicklime

d

Gypsum

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Q4

Which of the following is saturated hydrocarbon?

a

Alkane

b

Alkene

c

Alkyne

d

None of these

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Q5

Saturated hydrocarbon is -

a

C2H2

b

C2H4

c

C2H6

d

C6H6

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Q6

The valency of carbon in organic compounds is

a

1

b

2

c

3

d

4

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Q7

Which of the following is a saturated hydrocarbon?

a

\({\mathrm{C}}_{2}{\mathrm{H}}_{2}\)

b

\({\mathrm{C}}_{2}{\mathrm{H}}_{4}\)

c

\({\mathrm{C}}_{2}{\mathrm{H}}_{6}\)

d

\({\mathrm{C}}_{6}{\mathrm{H}}_{6}\)

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