Chapter 7+8

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Chapter 7+8 MCQ's form Chapter 7 and Chapter 8 of chemistry BookII Read questions carefully.

1. The first organic compound which was prepared by inorganic compound is:

A) Acetic acid
B) methane
C) urea
D) ethyl alcoho

2. Dehydration of alcohol involves:

A) free redical
B) carbocation
C) carbanion
D) carbene

3. The addition of HBr to propylene takes place opposite to Markownikoff's rule in pressence of:

A) sunlight
B) hydrogen peroxide
C) platinum catalyst
D) asbestos

4. Chemically similar compounds differing by a CH2 group are called

A) isomers
B) isomorphous
C) homologous
D) none

5. natural gas is composed primarily of.

A) methane
B) n-butane
C) n-octane
D) a moxture of octanes

6. Halogenation of alkanes is an example of.

A) electrophilic substitution
B) nucleophilic substitution
C) free radical substitution
D) reduction

7. The first product obtained during fractional distillation of petroleum is :

A) petroleum ether
B) diesel
C) kerosene
D) gasoline

8. Which one of the following does not have sp2 hybridized carbon:.

A) acetone
B) acetic acid
C) acetonitrile
D) gasoline

9. Initiator in halogenation of alkane is:.

A) free radical
B) addition
C) anion
D) sunlight of uv light

10. Which of the following is the most stable.

A) 1-butene
B) 2-butene
C) 1-pentene
D) 2-pentene