Question

Study the figures given below and mark the correct statement.

• A. (i) Nitric acid + Water,
  (ii) Acetone + Ethyl alcohol
• B. (i) Water + Ethyl alcohol,
  (ii) Acetone + Benzene
• C. (i) Acetone + Ethyl alcohol,
  (ii) Acetone + Chloroform
• D. (i) Benzene + Chloroform,
  (ii) Acetone + Chloroform

Answer 1

Answer: (C)

Acetone + ethyl alcohol solution shows positive deviation while acetone + chloroform shows negative deviation.
Other examples :
Positive deviations - Acetone + ethyl alcohol,
acetone + benzene, water + ethyl alcohol
Negative deviations - Nitric acid + water,
benzene + chloroform