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The formula of metal chloride is MCl3. It contains 20% of the metal.

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The formula of metal chloride is MCl3. It contains 20% of the metal. The atomic weight of the metal is

(a) 27

(b) 56

(c) 127

(d) 48

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1 Answer

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Correct option is (a) 27

Eq mass of the metal = \(\frac{20 \times 35.5}{80}\) = 8.875

Atomic mass = Eq. mass × Valency

= 8.875 x 3

= 26.625

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