1) The electronic configuration of an element is found to be 2,5 how many bonds can be formed by this element?

a). 3 b) 4 c) 2 d) 6

a) Only A b) only B c) both A & C, d) all of these

2) the chemical reaction shows the addition of chlorine to methane in presence of sunlight,

CH4 + Cl2 -à Z

What is the product of reaction in place of Z

a). CH4Cl2 + HCl b) CH3Cl + HCl c) CH2Cl2 + HCl d) All of these

3) find out the alkyne from the following

a) C2H5 b) C2H6 c) C3H4 d) C2H2

a) Only A b) Only C c) Both C & D d) All of these

4) Find the product of the following reaction.




a) CH3OH b) CH3H2O c) CH2O d) CH3COOH

5) Which option explains the naming of ethene?

(a) the presence of functional group connected with a single bond

(b) as it contains six hydrogen atoms and a single bond connects the carbon and hydrogen atom

(c) carbon compound with a total number of eight atoms are named as ethene

(d) it contains two carbon atoms and a double bond connects the carbon atoms

6) Which functional group is present in the following compound?




a). Acid b) Aldehyde c) Ketone d) Alcohol

7) Harshad studied that vinegar, which is a diluted form of ethanoic acid, freezes during winter. What does this suggest about the physical properties of pure ethanoic acid?

(a) it has a low boiling point

(b) it has a low melting point

(c) it has a very high boiling point

(d) it has a very high melting point

8)  Which of the following is the molecular formula of cyclopentane?

a) C5H10 b) C4H6 c) C4H8 d) C4H4

9) Methane, ethane, propane & Butane are said to form a homologous series because all are-

(a) differ from each other by a CH2 group

(b) saturated compounds

(c) aliphatic compounds

(d) Hydrocarbons

10) Given below are two statements: one is labelled as Assertion(A) and the other as Reason(R).

Assertion (A): C3H4 is known as Propyne.

Reason(R): C3H4 has 2 triple bonds.

a) (A) is incorrect but (R) is not correct

b) (A) is correct but (R) is incorrect

c) both are correct and (R) is the correct explanation of (A)

d) both are correct but (R) is not correct explanation of (A)

11) How many double bonds are present in ethane?

a) Four b) Five c) Zero d) Three

12) How many minimum carbon atoms should have a compound (Hydrocarbons) to show isomerism?

a) Three b) Four c) Fived d) Six

13) Find the isomeric Pair
A. Ethane and propane
B. Propane and butane
C. Ethane and ethane
D. Butane and 2-methylpropane

14) Which of the given is used to oxidise ethanol to ethanoic acid?
A. Alkaline KMnO₄
B. Conc. H₂SO₄
C. Acidified K₂Cr₂O₇
D. All of these

15) A molecule of ammonia has
A. Only single bonds
B. Only double bonds
C. Only triple bonds
D. Two double bonds and one single bond

16) Which of the given does not belong to the same homologous series?
A) CH₄ B) C₂H₆ C) C₃H₈ D) C₄H₈

17) The first member of alkyne homologous series is:
A. Methyne
B. Butyne
C. Ethyne
D. Propyne

18) Which of the given has a triple bond?
A. Hydrogen molecule
B. Nitrogen molecule
C. Oxygen molecule
D. Ammonia molecule

19) How many single bonds are present in butane?
A. 13 B. 10 C. 12 D. 15

20) How many carbon atoms are present in one molecule of Propanoic acid?
A. 2 B. 3 C. 4 D. 5