Engineering Questions with Answers - Multiple Choice Questions
Chemical Industry MCQ’s – Inorganic Chemical – Hydrazine
1 - Question
What is the molecular weight of hydrazine?
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 - Question
Hydrazine is miscible with water. Is the statement true/false?
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 - Question
What is the percentage of N2H4 present in hydrazine hydrate?
a) 64% N2H4
b) 80% N2H4
c) 98% N2H4
d) 50% N2H4
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 - Question
The gas produced in the side reaction of ammonia-sodium hypochlorite process is _________
Explanation: The side reaction of ammonia-sodium hypochlorite process is 2NH2Cl+N2H4 →2NH4Cl+N2, hence the gas produced is nitrogen.
5 - Question
Inhibitor used in the formation of chloro amine is ___________
b) Nitric oxide
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 - Question
Which gas is used for shipping anhydrous hydrazine?
b) Nitric oxide
Explanation: Nitrogen gas is used for shipping anhydrous hydrazine in stainless steel drums. A little bit of Organic inhibitor is added for providing stability.