Question:
Match the following and choose the correct option given below.
Compound/Type \quad Use
A. Dry ice 1. Anti-knocking compound
B. Semiconductor 2. Electronic diode or triode
C. Solder 3. Joining circuits
D. TEL 4. Refrigerant for preserving food
Match the following and choose the correct option given below.
Compound/Type \quad Use
A. Dry ice 1. Anti-knocking compound
B. Semiconductor 2. Electronic diode or triode
C. Solder 3. Joining circuits
D. TEL 4. Refrigerant for preserving food
Show Hint
Dry ice, semiconductors, solder, and TEL are all important substances used in various industrial and technological applications.
Updated On: Jan 6, 2026
- A B C D
- I II III IV
- II III IV I
- IV III II I
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Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Identifying the correct pairs.
- Dry ice (solid CO\(_2\)) is used as a refrigerant, matching with 4. - Semiconductor is used in electronic devices, matching with 2. - Solder is used for joining circuits, matching with 3. - TEL (Tetraethyl lead) is used as an anti-knocking compound, matching with 1.
Step 2: Conclusion.
The correct match is IV III II I, corresponding to option (4).
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