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A gas X diffuse through porous partition at the rate of 3 cm3 per second....

Chemistry
NECO 2001
A gas X diffuse through porous partition at the rate of 3 cm3 per second. Under the same condition hydrogen diffused at the rate of 15 cm3 per second.

What is the 42. relative molecular mass of X.
  • A. 5
  • B. 12
  • C. 18
  • D. 45
  • E. 50
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Correct Answer: Option E
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