A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of the chloride is?[ M = 27, Cl = 35.5]

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A. MCl
B. MCl2
C. MCl3
D. M2Cl6

Correct Answer:

Option C = MCl3

Explanation

M Cl
% composition 20.22 79.78
Atomic mass 27 35.5
Mole ratio 20.22 79.78
27 35.5
0.75 2.25
Divided 0.75 0.75
1 3

The formula of the Chloride = MCl3

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