Asked in PMC Practice Test 26 (2021) 2021

Rectified spirit is converted into the absolute alcohol by _.

Correct answer: C. Re-distillation

  • A. Crystallization
  • B. Distillation
  • C. Re-distillation
  • D. Fractional distillation

Explanation

c) Re-distillation: Re-distillation is essentially the same as distillation. It is the process of distilling a liquid multiple times to achieve higher purity. In the case of converting rectified spirit into absolute alcohol, the process would involve re-distillation.

Last updated

About Sublimation and Distillation

Sublimation separates a sublimable solid from non-sublimable impurities by direct conversion between solid and vapour, followed by deposition. Distillation separates liquids through differences in boiling points, including simple, fractional, steam and vacuum distillation, and the choice depends on volatility, miscibility and thermal stability.

Practise Experimental Techniques in Chemistry

79 free Experimental Techniques in Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Exams that ask Chemistry questions like this

Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Related questions