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(a) Describe the removal of greasy dirt by soap.
(b) What is absolute alcohol? Explain how it can be obtained from rectified spirit by fractional distillation.
This is Question 34 from UKPSC Mains 2016 (Paper-VI, Section B). It carries 16 marks with a word limit of 250 words.
UKPSC Mains requires structured, analytical answers. Keep your answer within 250 words: focus on key arguments, relevant examples, and a clear conclusion. Practice more questions from all UKPSC Mains papers.