10. Heliuni is produced on commercial scale from
A. coke oven gas
B. air
C. natural gas
D. none of these
Ans: C
A. coke oven gas
B. air
C. natural gas
D. none of these
Ans: C
Showing posts with label Lab Viva Questions With Answers on Chemicals Process. Show all posts
Showing posts with label Lab Viva Questions With Answers on Chemicals Process. Show all posts
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