Question

9. The mass of 1 mol of chloride formed by metal ‘X’ is 111.0g. Which one could be the formula of the chloride. a) XCl c) XCl2 b) XCl3 d) XCl4

Answer 1

Answer: a) xcl

Explanation:

Answer 2

c) XCl₂

Explanation:

As we know that one mole of chlorine is equal to 71 g.

Weight of $Cl_2=35.5\times2=71$

The molecular weight of 1 mole of chloride formed by a metal X is  $111\ g$.

Therefore,

$X+71=111$

$\implies X=40$

Hence, the atomic weight of X will be 40.

And calcium is having an atomic weight of 40.

So the required formula will be XCl₂ and CaCl₂.

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