In Duma’s method of estimation of nitrogen 0.35 of an organic compound gave 55 mL of nitrogen collected at 300 K temperature and 715 mm pressure. The percentage composition of nitrogen in the compound would be -
(Aqueous tension at 300K= 15 mm)

1.  16.45
2.  17.45
3.  14.45
4.  15.45

Subtopic:  Quantitative Analysis of Organic Compounds |
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NEET 2023 - Target Batch - Aryan Raj Singh
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The Lassaigne’s extract is boiled with conc. HNO3 while testing for halogens, because it- 

1. Helps in the precipitation of AgCl
2. Increases the solubility product of AgCl
3. Increases the concentration of NO3- ions
4. Decomposes Na2S and NaCN, if formed

Subtopic:  Qualitative Analysis of Organic Compounds | Quantitative Analysis of Organic Compounds |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology