Chemistry Test 138

Result

Chemistry Test 138

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following will convert

A

B

C

D
Question 2
4 / -1

1,3-Butadiene when treated with Br₂ gives

A
1,4-dibromo-2-butene

B
1,3-dibromo-1-butene

C
3,4-dibromo-2-butene

D
2,3-dibromo-2-butene
Question 3
4 / -1

Ozonolysis of C₇H₁₄ gave 2-methyl-3-pentanone. The alkene is

A
2-ethyl-3-methyl-1-butene

B
3-ethyl-2-methyl-3-butene

C
2,5-dimethyl-3,4-dimethylhex-3-ene

D
3-ethyl-2-methyl-1-butene

Solution

A) is right ans bcoz in above given option only a give 2me 3pantanone .in ozonolysis compound break at double bond.
Question 4
4 / -1

A gas on passing through ammonical solution of AgNO₃ does not give any precipitate but decolourises alkaline KMnO₄ solution. The gas may be

A
C₂H₂

B
C₂H₄

C
C₃H₄

D
C₃H₆
Question 5
4 / -1

The ortho-para directing group among the following is

A
COOH

B
CN

C
COCH₃

D
NHCOCH₃
Question 6
4 / -1

Amongst the following, the compound that can be most readily sulphonated is

A
Benzene

B
Nitrobenzene

C
Toulene

D
Chlororbenzene
Question 7
4 / -1

Which of the chemical system is non-aromatic ?

A
II

B
IV

C
II and IV

D
None(i.e all are aromatic)
Question 8
4 / -1

In (substitution, nucleophilic unimoleuclar) a reaction, the racemization takes place. It is due to

A
inversion of configuration

B
retention of configuration

C
conversion of configuration

D
both 1 and 2
Question 9
4 / -1

Chloroform on warming with Ag powder gives

A
C₆H₆

B
C₂H₄

C
C₂H₂

D
None
Question 10
4 / -1

Ethyl alcohol gives ethyl chloride with the help of

A
SOCl₂

B
NaCl

C
Cl₂

D
KCl