Question

Tally of Substances and Their Applications

Given Substances in Column A:

a. Plaster of Paris

b. Caustic soda

c. Sodium bicarbonate

d. Bleaching powder

Applications in Column B:

i. Formation of soap

ii. Antibacterial

iii. Formation of an idol

iv. Used for bleaching

• A. a - i, b - ii, c - iii, d - iv
• B. a - ii, b - i, c - iv, d - iii
• C. a - iv, b - iii, c - ii, d - i
• D. a - iii, b - i, c - iv, d - ii

Hint:

Plaster of Paris is used in construction and making sculptures, while caustic soda is crucial for soap-making. - Sodium bicarbonate has a variety of uses, including as a deodorizer and in cleaning, while bleaching powder is often used for its disinfectant properties.

Answer 1

The Correct Option is D

Step 1: Analyze the Applications of Each Substance

• Plaster of Paris is used for making molds and forming idols, so it matches with iii (formation of an idol).
• Caustic soda (NaOH) is used in soap formation, so it matches with i (formation of soap).
• Sodium bicarbonate (baking soda) is used for its bleaching properties, so it matches with iv (used for bleaching).
• Bleaching powder is used as an antibacterial agent, so it matches with ii (antibacterial).

Step 2: Conclude

The correct set of the tally is:

• a - iii (Plaster of Paris - formation of an idol)
• b - i (Caustic soda - formation of soap)
• c - iv (Sodium bicarbonate - used for bleaching)
• d - ii (Bleaching powder - antibacterial)