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Chemistry Class 12 Chapter 10
Alkyl Halides
Test 9
1.
Electrophile are in nature are?
Neutral molecules
Not exact
Both are possible
Positive ion
2.
Which one is not nucleophile?
2
H
5
O
-
NH
3
H
3
C
+
SCN
-
3.
What will be the order of reaction of a reaction whose rate can be expresses as R=K[A][B]?
Zero
Two
One
Three
4.
In elimination reaction of alkyl halide, which site is more suitable for the attack of nucleophile?
Alpha hydrogen
Alpha-carbon
Beta carbon
Beta-hydrogen
5.
When two moles of alkyl halide react with two moles of sodium in the presence of ether , what produces?
1 mole of butane
2 moles of ethane
1 mole of ethane
2 mole of butane
6.
Those reaction which involve the removal of H-X are called?
None of these
Electrophilic substitution reaction
Nucleophilic Substitution reaction
Beta-elimination reaction
7.
During SN
2
mechanism , carbon atom changes it sate of hybridization?
sp
3
-sp
sp
2
-sp
3
sp
3-
-sp
2
sp-sp
2
8.
Which of the following reactants will be required to form ethane from ethyl chloride?
Aqueous KOH
Alcoholic KOH
Alkaline KMnO
4
Aqueous NaOH
9.
Greater the electonegtivity difference?
None of these
Less reactivity
More reactivity
More stability
10.
n-butyl chloride has isomers?
5
3
2
4
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