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CBSE

Subject

Chemistry

NEET Chemistry : Haloalkanes and Haloarenes

Multiple Choice Questions

71.

What will be compound A in the following reaction?

C(CH₃)₃CH = CH₂ $\to_{(ii) {NaBH}_{4}, NaOH}^{(i) Hg ({OOCCH}_{3})_{2} / THF}$ A

72.

Oil used as frothing agent in froth-floatation process is

pine oil
mustard oil
coconut oil
olive oil

73.

The product P is

74.

The correct order of reactivity of the three halides ethyl chloride (I), iso-propyl chloride (II) and benzyl chloride (III) in S_N1 reaction is :

I > II > III
III > II >I
II > I > III
I > III > II

75.

Which of the following possess highest melting point?

p-dichlorobenzene
m-dichlorobenzene
o-dichlorobenzene
chlorobenzene

76.

Identify X.

77.

Consider the following set of reactions :

CH₃COOH $\overset{{SOCl}_{2}}{\to}$ A $\to_{Anhydrous {AlCl}_{3}}^{Benzene}$ B $\overset{HCN}{\to}$ C $\overset{HOH}{\to}$ D

The structure of D would be

78.

In the presence of ether , 2-choloropropane reacts with sodium and form :

n-hexane
2 , 3 - dimethyl butane
n - hexene
CH₃ $—$ CH $=$ CH₂

79.

What is the name of the following reaction?

PhCHO + (CH₃CO)₂O $\overset{Na (OAc)_{2}}{\to}$ PhCH = CHCO₂H

Oxymercuration demercuration reaction
Cannizzaro reaction
Knoevenagel's reaction
Perkin reaction

80.

Which one of the following does not give white precipitate with acidified silver nitrate solution?

CH₂ = CH - Cl
CH₂ = CH - CH₂ - Cl
Both (a) and (b)

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