Multiple choice

Which of the following statements is/are false? a. The various compounds present in coal tar are separated by the process of fractional distillation. b. The naphthalene balls used to repel moths and other insects is a product of coal tar. c. Coal gas is a mixture of methane, nitrogen and carbon monoxide as major components.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Statement 'c' is a false statement. Coal gas contains a variety of calorific gases including hydrogen, carbon monoxide, methane and volatile hydrocarbons together with small quantities of non-calorific gases such as carbon dioxide and nitrogen. Thus, it is the correct option.

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