Numerical Problems in Organic Quantitative Analysis NEET Questions

Organic Chemistry - Purification and Characterization of Organic Compounds

Numerical Problems in Organic Quantitative Analysis MCQ Questions


1.

0.5 g of an organic compound gave 0.7 g of CO2. Calculate % of carbon.

A.

28.50%

B.

42.80%

C.

19.20%

D.

38.40%

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ANSWER :

B. 42.80%

2.

In Kjeldahl’s method, NH3 is absorbed in:

A.

NaOH

B.

KOH

C.

HCl

D.

H2SO4

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ANSWER :

C. HCl

3.

To detect nitrogen, compound is fused with:

A.

Na

B.

NaOH

C.

K2Cr2O7

D.

BaSO4

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ANSWER :

A. Na

4.
A 0.25 g compound gave 0.21 g H2O. % of H = ?
A.
12.00%
B.
9.30%
C.
11.20%
D.
10.40%
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ANSWER :
C. 11.20%
5.
0.1 g compound gave 0.143 g AgBr. % of Br = ?
A.
29.60%
B.
38.50%
C.
41.20%
D.
33.60%
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ANSWER :
D. 33.60%
6.
Which method is not used for nitrogen estimation?
A.
Kjeldahl
B.
Dumas
C.
Victor Meyer
D.
All are used
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ANSWER :
C. Victor Meyer