151. Nylon-6 is manufactured from
Caprolactum
Hexamethylene diamine and adipic acid
Hexamethylene diamine and maleic anhydride
Hexamethylene diamine and sebacic acid
✅ The correct answer is option A.
Chemical Process MCQs
152. Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.
Flint
Soda
Pyrex
Potash
✅ The correct answer is option C.
153. Zeolite is a/an
Naturally occuring clay which is capable of exchanging cations
Abrasive material
Catalyst used in shift conversion
None of these
✅ The correct answer is option A.
154. In the production of soda ash by Solvay process, the by-product is
CaCl₂
NH₄Cl
NH₃
NaOH
✅ The correct answer is option A.
155. Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of
Carbon
Arsenic
Lead
Sulphur
✅ The correct answer is option B.
156. Pick out the wrong statement pertaining to nitric acid.
About 90% of nitric acid is manufactured by Ostwald
It is a strong mono basic acid which reacts with almost all the metals except noble metals
Yellow color of impure nitric acid is because of dissolved oxides of nitrogen (mainly NO₂)
Arc process of nitric acid manufacture is economical as compared to Ostwald
✅ The correct answer is option D.
157. Grignard reagent is chemically known as
Ethyl magnesium chloride
Methyl magnesium chloride
Dichlorophenol
Monochloro acetic acid
✅ The correct answer is option A.
158. The enzyme which converts starch into the disacharides maltose is
Diastase
Maltase
Yeast
None of these
✅ The correct answer is option A.
159. Average sulphur content in Indian pyrites is about __________ percent.
15
35
55
70
✅ The correct answer is option B.
160. Nylon-6 as compared to Nylon-66 is having higher
Hardness
Abrasion/resistance
Melting point
None of these
✅ The correct answer is option D.