An element, X, forms a volatile hydride XH3 with a vapour density of 17.0. The
CHEMISTRY
JAMB 1997
An element, X, forms a volatile hydride XH3 with a vapour density of 17.0. The relative atomic mass of X is? (H = 1)
- A. 34.0
- B. 31.0
- C. 20.0
- D. 14.0
Correct Answer: B. 31.0
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