Numerical Problems in Organic Quantitative Analysis NEET Questions

Organic Chemistry - Purification and Characterization of Organic Compounds

Numerical Problems in Organic Quantitative Analysis MCQ Questions


13.
Which element is estimated using Liebig's combustion method?
A.
Carbon
B.
Nitrogen
C.
Sulphur
D.
Phosphorus
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ANSWER :
A. Carbon
14.

For nitrogen estimation by Dumas method, gas collected is:

A.

O2

B.

N2

C.

NH3

D.

NO2

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ANSWER :

B. N2

15.
Kjeldahl method is not suitable for:
A.
Nitro compounds
B.
Amides
C.
Amines
D.
Proteins
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ANSWER :
A. Nitro compounds
16.

Water formed in organic compound is absorbed by:

A.

Conc. H2SO4

B.

Anhydrous CaCl2

C.

CuSO4

D.

CaCO3

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ANSWER :

B. Anhydrous CaCl2

17.

A compound contains 85.7% C and 14.3% H. Empirical formula?

A.

CH

B.

CH2

C.

C2H4

D.

C2H2

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ANSWER :

B. CH2

18.
In Carius method, heating is done in:
A.
Porcelain dish
B.
Carius tube
C.
Crucible
D.
Test tube
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ANSWER :
B. Carius tube