11th Class Chemistry Chapter 11 MCQ Test with Answer

MCQ's Test For Chapter 11 "Hydrocarbons"

Try The MCQ's Test For Chapter 11 "Hydrocarbons"

  • Total Questions17

  • Time Allowed20

Hydrocarbons

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Question # 1

The bond angle in ethene is approximately

Question # 2

The product formed when ethene reacts with H2 i the presence of Ni is.

Question # 3

The shape of ethene molecule i due to

Question # 4

Which of the following is most stable.

Question # 5

Ethene belongs to which class of hydrocarbons.

Question # 6

Chain isomerism occurs due to differences in 

Question # 7

What is the prefix for a three -carbon chain in IUPAC nomenclature.

Question # 8

Which of the following is not a free radical 

Question # 9

Which of the following has a branched chain structure.

Question # 10

Polymerization of ethene gives.

Question # 11

Which of these monomers forms a condensation polymer.

Question # 12

An alkene undergoes ozonolysis followed by reduction with zinc dust and water to yield propanone and methanal. The alkene is

Question # 13

What type of bond cleavage occurs in the initation step

Question # 14

Geometrical isomerism is possible in.

Question # 15

The enhanced stability of conjugated diens compared to isolated dienes is primarily attributed to

Question # 16

Which of the following shows position isomerism.

Question # 17

The test for unsaturation in a hydrocarbon that disappears the colour is.

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FSc Part 1 Chemistry (New Book) Chapter 11 Important MCQ's

Sr.# Question Answer
1 Which is a pair of geometrical isomers.
A. Ethane and propane
B. But-1- ene and but-2- ene
C. eis-but-2- ene and trans -but-2-ene
D. Benzene and toluene
2 The shape of the cethane molecule is.
A. Planar
B. Tetrahedral
C. Linear
D. Trigonal planar
3 Which of the following is an addition polymer.
A. Nylon
B. Bakelite
C. Polyethylene
D. Terylene
4 Which of the following is most stable.
A. Teriary radical
B. Primary radical
C. Secondary radical
D. Methyl radical
5 The general formula for alkanes is.
A. CnH2n+2
B. CnH2n-2
C. CnH2n
D. CnH2n-1
6 Which  of these hydroarbons is saturated
A. Propane
B. Ethyne
C. Butane
D. Cyclopentene
7 The bond angle in ethene is approximately
A. 109. 5 o
B. 180. 5 o
C. 120. o
D. 90. o
8 What is the firt step in the electrophilic addition reaction of alkenes.
A. Formation of acarbocation 
B. Attack by nucleophile
C. Attack by an electrophile on the double bond
D. Formation of a free radical
9 In the electrophilic addition of HBr to propene, the major product is.
A. 1- bromopropane
B. 2- bromopropane
C. 3- bromopropane
D. Isopropanol
10 Which of the following shows position isomerism.
A. But-1 -ene and but -2- ene
B. Ethene and ethyne
C. Propane and propene
D. Cyclohexane and benzene

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