Question

Match List-I with the List-II

List-I (Compound)	List-II (Uses)
(A) Iodoform	(I) Fire extinguisher
(B) Carbon tetrachloride	(II) Insecticide
(C) CFC	(III) Antiseptic
(D) DDT	(IV) Refrigerants

Choose the correct answer from the options given below:

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

Answer 1

The Correct Option is C

To correctly match the compounds in List-I with their respective uses in List-II, we must understand the specific characteristics and applications of each compound:

1. Iodoform (A) is known for its antiseptic properties. It has been used historically in medicine as a disinfectant. Therefore, the correct match is III - Antiseptic.
2. Carbon tetrachloride (B) was once widely used in fire extinguishers due to its non-flammable properties. Because of its toxicity and adverse health effects, its use is now limited. The correct match is I - Fire extinguisher.
3. CFC (Chlorofluorocarbons) (C) are compounds known for their role as refrigerants. They are used in air conditioning and refrigeration systems but are being phased out due to their ozone-depleting effects. The correct match is IV - Refrigerants.
4. DDT (Dichloro-Diphenyl-Trichloroethane) (D) is a well-known pesticide and insecticide. It was widely used to control mosquito populations but is now banned in many countries due to environmental and health concerns. The correct match is II - Insecticide.

Based on the above explanations, the correct matching pattern is:

• A-III (Iodoform - Antiseptic)
• B-I (Carbon tetrachloride - Fire extinguisher)
• C-IV (CFC - Refrigerants)
• D-II (DDT - Insecticide)

Thus, the correct answer is: A-III, B-I, C-IV, D-II.

Answer 2

Iodoform $\rightarrow$ Antiseptic
CCl$_4$ $\rightarrow$ Fire extinguisher 
CFC $\rightarrow$ Refrigerants
DDT $\rightarrow$ Insecticide 
Thus, the correct match is:
\[\boxed{\text{A-III, B-I, C-IV, D-II}}\]