This set of Chemical Industry Multiple Choice Questions & Answers (MCQs) focuses on “Inorganic Chemical – Hydrazine”.
1. What is the molecular weight of hydrazine?
a) 28
b) 30
c) 32
d) 17
View Answer
Explanation: Molecular formula of hydrazine is N2H4. 2 nitrogen atoms and 4 hydrogen atoms make 1 mole of N2H4. Molecular weight = 2*14 + 4*1 = 32.
2. Hydrazine is miscible with water. Is the statement true/false?
a) True
b) False
View Answer
Explanation: Hydrazine is miscible with water since it mixes in all proportions with water. It is also miscible with low molecular weight alcohols and forms constant boiling mixture with 28.5 weight % water.
3. What is the percentage of N2H4 present in hydrazine hydrate?
a) 64% N2H4
b) 80% N2H4
c) 98% N2H4
d) 50% N2H4
View Answer
Explanation: Percentage of N2H4 present in hydrazine hydrate is 64% N2H4 whereas 98% N2H4 present in the anhydrous hydrazine produced from the distillation of hydrazine hydrate.
4. The gas produced in the side reaction of ammonia-sodium hypochlorite process is _________
a) H2
b) N2
c) Cl2
d) O2
View Answer
Explanation: The side reaction of ammonia-sodium hypochlorite process is 2NH2Cl+N2H4 →2NH4Cl+N2, hence the gas produced is nitrogen.
5. Inhibitor used in the formation of chloro amine is ___________
a) Aspirin
b) Nitric oxide
c) Glycol
d) Gelatin
View Answer
Explanation: Aqueous ammonia reacts with sodium hypochlorite in 3:1 ratio to produce chloro amine and sodium hydroxide in presence of glue or gelatin inhibitor.
6. Which gas is used for shipping anhydrous hydrazine?
a) Nitrogen
b) Nitric oxide
c) Oxygen
d) Chlorine
View Answer
Explanation: Nitrogen gas is used for shipping anhydrous hydrazine in stainless steel drums. A little bit of Organic inhibitor is added for providing stability.
Sanfoundry Global Education & Learning Series – Chemical Industry.
To practice all areas of Chemical Industry, here is complete set of 1000+ Multiple Choice Questions and Answers.
If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]
- Apply for Chemical Engineering Internship
- Practice Chemical Engineering MCQs
- Check Chemical Process Technology Books
- Check Chemical Engineering Books
