Question

Match List-I with List-II.

• A. A-III, B-I, C-IV, D-II
• B. A-II, B-IV, C-I, D-III
• C. A-III, B-IV, C-II, D-I
• D. A-III, B-IV, C-I, D-II

Hint:

Remember: \[ \text{Nickel} \rightarrow \text{Hydrogenation} \] \[ \text{Eosin} \rightarrow \text{Argentometric Indicator} \] \[ \text{Activated Charcoal} \rightarrow \text{Adsorption} \]

Answer 1

The Correct Option is D

Concept: Many substances have specific industrial and laboratory applications based on their adsorption, catalytic, or indicator properties. The question requires matching each substance with its most important application.

Step 1: Identify the use of Eosin Eosin is an adsorption indicator used in argentometric titrations. Therefore, \[ A \rightarrow III \]

Step 2: Identify the use of Alumina Gel Alumina gel acts as a drying and moisture-absorbing agent. Hence it is used for humidity control. \[ B \rightarrow IV \]

Step 3: Identify the use of Coconut Charcoal Activated coconut charcoal possesses high adsorption capacity. It is used in adsorption-based separation of noble gases and inert gases. \[ C \rightarrow I \]

Step 4: Identify the use of Finely Divided Nickel Finely divided nickel acts as a catalyst in hydrogenation reactions. A famous example is conversion of vegetable oils into vanaspati ghee. \[ D \rightarrow II \]

Step 5: Final matching \[ A-III \] \[ B-IV \] \[ C-I \] \[ D-II \] Hence, \[ \boxed{\text{Option (D)}} \]