Previous paper class 2nd Year(Chemistry)

Q NO. 1: Choose the right answer. /22
1) Catalytic oxidation occurs in:
(a) Lower Alkanes (b) Higher Alkanes
(c) Lower Alkenes (d) Alkynes
2) Highly reactive Halogen in the process of Halogenation is:
(a) Chlorine (b) Bromine (c) Fluorine (d) Iodine
3) A trans Alkane is obtained by treating alkyne with:
(a) K/liq.NH3 (b) Na/liq.NH3

(c) Pd (BaSO4) (d) H2O
4) Which of the following reaction helps to locate double bond in Alkenes:
(a) Combustion (b) Oxidation
(c) Ozonolysis (d) Polymerization
5) Which of the following is highly reactive:
(a) Alkenes (b) Alkynes (c) Alkanes (d) Ethyne
6) Alkenes easily undergo:
(a) Nucleophilic reactions (b) Halogenation reactions
(c) Dehydration reactions (d) Electrophilic reactions
7) Phenanthrene is:
(a) Polycyclic (b) Monocyclic (c) Heterocyclic (d) Isolated
8) Benzene is stable to:
(a) KMnO4 (b) MnO2 (c) Hydrazine (d) Hydrogen
9) Mustard gas is a:
(a) Destroying gas b) High boiling liquid
c) High boiling gas d) Laughing gas
10) Alkynes are reactive because of:
(a) Non-polar nature b) Pi bond c) Sigma bond d) Both a and b
11) In case if double and triple bonds both are present at identical position of
given structure, the numbering will start from the side of:
a) Double bond b) triple bond c) Single bond d) None