Q180
Consider the following chemicals. 1. Benzene 2. Carbon tetrachloride 3. Sodium carbonate 4. Trichloroethylene Which of the above is/are used as dry cleaning chemicals?
A.
Only 1
B.
Only 2
C.
1, 2 and 4
AnswerD.
1, 2, 3 and 4
Answer: Option C
Solution
Answer: Option C
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