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An element A (atomic weight = 12) and B ...

An element A (atomic weight = 12) and B (atomic weight = 35.5) combines to form a compound X. If 4 mol of B combines with 1 mol of A to give 1 mol of X. The weight of 1 mol of X would be :

A

47.5 g

B

74.0 g

C

154.0 g

D

148.8 g

Text Solution

Verified by Experts

The correct Answer is:
C
`A + AB rarr X rArr` Molar mass of X = Molar mass of A + 4 X molar mass of B
`= 12 + 4 xx 35.5 = 154`
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