testy
3

No

Problem

The

answer

1

In reaction of ethyl benzoate with an excess of phenylmagnesium bromide is obtained: a) 2-phenyl-2-propanol; b) triphenylmethanol; c) 1-phenyl-1-propanol; d) 4-phenyl-l-butanol

2

In reaction of methoxybenzene (anizole) with bromine under reflux is obatned: a) pentabromoanizol; b) 3,5-dibromoanizol; c) 4-bromoanizol; d) 2,3-dibromoanizol

0

1

What substrates are used for the synthesis of 4-hydroxy-4-methyl-2-pentanone: a) two molecules of acetone; b) acetone + propanal; c) two molecules of ethanal; d) ethanal + propanal

4

Iiow many atoms of 1,2-dichloroethene molecule are there in one piane: a) 2; b) 4, c) 6; d) any one.

5

The most stable cation is: a) benzyl; b) ethyl; c) trityl; d) methyl

6

lndicated which acid is strongest m acjuoeus solution: a) acetic acid; b) chloroacetic acid; c) dichloroacetic acid; d) trifluoroacetic acid

7

3-Phenyl-2-butanol treated with concd. sulphuric acid under reflux gives: a) 1-phenyłpropane; b) 3-phenylpropene; c) 2-phenyl-2-butene; d) 2-phenyl-l-butene

8

Benzene diazonium sulphate heated in the presence of cuprous cyanide gives: a) benzonitrile; b) o-kresole; c) 2-methylbenzonitrile; d) p-cresole

9

Addition of bromine molecule to cyclopentene gives: a) 1,1-dibromocyclopentane; b) cis 1,2-dibromocyclopentane; c) trans 1,2-dibromocyclopentane; d) 1,3-

dibromocyclopentane

10

In reaction of ketene with acetic acid is obtained: a) ethyl acetate; b) ethanol; c) propionic acid; d) acetic anhydride

11

^rfhe Beckmann rearrangement of (Z)-oxime of acetophenone yields: a) N-acetylbenzamide; b) N-benzoylacetamide; c) benzamide; d) N-methylbenzamide

12

The highly acidic proton is present in the molecule of: a) ethane; b) benzene; c) nitromethane; d) toluene.