Class 10 Chemistry MCQs - Chapter 5

Chemical Industries Multiple Choice Questions (MCQ) PDF - 8

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Chemical Industries Questions & Answers PDF Download: MCQ Quiz 8

MCQ 36: The third step of the Solvay process is

A) preparation of ammonical brine

B) carbonation

C) filtration

D) calcination

MCQ 37: Number of carbon atoms per molecule in kerosene is

A) 1 to 4

B) 5 to 10

C) 8 to 12

D) 10 to 16

MCQ 38: Process in which sodium carbonate is manufactured is called

A) calcination

B) metallurgy

C) Solvay process

D) carbonation

MCQ 39: Raw materials for production of urea are

A) ammonia and carbon dioxide

B) oxygen and carbon dioxide

C) ammonia and oxygen

D) ammonia and phosphate

MCQ 40: Process in which mineral is separated from the gangue by some physical method is called

A) crushing, grinding or pulverizing of the ore

B) concentration of the ore

C) extraction of metal

D) refining of metal

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