Question: Consider the following chemicals:
- Benzene
- Carbon tetrachloride
- Sodium carbonate
- Trichloroethylene Which of the above/is are used as dry cleaning chemical?
Options:
A) 1 only
B) 2 only
C) 1, 2 and 4 only
D) 1, 2, 3 and 4
Show Answer
Answer:
Correct Answer: C
BETA
