Qualitative and Quantitative Analysis (Estimation of Carbon, Hydrogen, Nitrogen,... ) NEET Questions

Organic Chemistry - Purification and Characterization of Organic Compounds

Qualitative and Quantitative Analysis (Estimation of Carbon, Hydrogen, Nitrogen,... ) MCQ Questions


13.
Estimation of halogens involves fusion with
A.
NaOH
B.
CuO
C.
Na
D.
AgNO₃
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ANSWER :
C. Na
14.
Silver nitrate test for halogens is performed after adding
A.
HNO₃
B.
H₂SO₄
C.
HCl
D.
NaOH
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ANSWER :
A. HNO₃
15.
A white ppt. soluble in NH₄OH in halogen test indicates
A.
Chlorine
B.
Bromine
C.
Iodine
D.
Fluorine
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ANSWER :
A. Chlorine
16.
In estimation of sulphur, it is converted into
A.
BaSO₄
B.
Na₂SO₄
C.
SO₂
D.
SO₃
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ANSWER :
A. BaSO₄
17.
Which reagent is used in detection of phosphorus?
A.
Ammonium molybdate
B.
Silver nitrate
C.
Lead acetate
D.
FeSO₄
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ANSWER :
A. Ammonium molybdate
18.
Which gas is liberated when organic compound containing nitrogen is fused with soda lime?
A.
NH₃
B.
NO₂
C.
N₂
D.
N₂O
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ANSWER :
A. NH₃