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Chemistry Class 12 Chapter 8
Aliphatic Hydrocarbons
Test 9
1.
The order of dehydration of alcohol is?
ec>tri>pri
Ter>sec>pri
No general rule
Pri>sec>tri
2.
Reney nickel is an alloy of?
Ni-Al
Ni-Cu
Ni-Fe
Ni-Mg
3.
General formula of cycloalkane is?
CnH
2n
CnH
2n+2
CnH
2n-n
CnH
2n+1
4.
lkenes are produced form dehalogenation?
tri-halide alkane
vic-di-halide
di-halid alkane
vic-tri-halide
5.
Fertilizer used gas is?
C
2
H
4
C
2
H
6
CH
4
C
2
H
2
6.
lkanes are gases up to?
5
4
2
3
7.
In unsaturated hydrocarbons , pi electrons are favourable for?
Addition reactions
Less reactivity
Substitution reaction
All of these
8.
Order of halogenations is?
Chlorine>fluorine>bromine>iodine
Iodine>chlorine>bromine>fluorine
Fluorine>chlorine>iodine>bromine
Fluorine>chlorine>bromine>iodine
9.
Removal of halogen and hydrogen atom is known as?
Carbonations
Dehydrohalogenation
Hydration
halogenation
10.
Reaction due to pi electrons is present in?
Alkene
Alkane
Alkyne
Both b & c
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