Subject

Chemistry

Class

NEET Class 12

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NEET Chemistry Solved Question Paper 2013

Multiple Choice Questions

41.

Nitrobenzene on reaction with conc. HNO₃/H₂SO₄ at 80-100⁰C forms which one of the following products?

1,2-dinitrobenzene
1,3- dinitrobenzene
1,4-dinitrobenzene
1,4-dinitrobenzene

1897 Views

42.

Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?

-C $identical to$ N
-SO₃H
-COOH
-COOH

1240 Views

43.

Which of the following compounds will not undergo Friedel -Craft's reaction easily?

Cumene
Xylene
Nitrobenzene
Nitrobenzene

3951 Views

44.
In the reaction,

HgSO₄/H₂SO₄

Cu₂Cl₂

H₃PO₂ and H₂O

H₃PO₂ and H₂O

H₃PO₂ and H₂O

When diazonium salt is treated with H₃PO₂ followed by hydrolysis. It diazonium group is replaced by -H resulting to the formation of hydrocarbon. Thus, A must be H₃PO₂/H₂O.

1235 Views

45.

Which is the monomer of neoprene in the following

$CH subscript 2 space equals CH minus straight C identical to CH$
$CH subscript 2 space equals space straight C space minus CH space equals CH subscript 2 space space space space space space space space space space space space space space vertical line space space space space space space space space space space space space space space CH subscript 3$
$CH subscript 2 space equals space straight C space minus CH space equals CH subscript 2 space space space space space space space space space space space space space space vertical line space space space space space space space space space space space space space Cl$
$CH subscript 2 space equals space straight C space minus CH space equals CH subscript 2 space space space space space space space space space space space space space space vertical line space space space space space space space space space space space space space Cl$