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The formula of metallic hydroxide (eq. wt. = 150) is M(OH)2 xH2O.

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The formula of metallic hydroxide (eq. wt. = 150) is M(OH)2xH2O. If the atomic weight of the metal is 176 then the value of x will be

(a) 2

(b) 5

(c) 3

(d) 6

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1 Answer

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Best answer

Correct option is (b) 5

The mol. mass of the hydroxide = Acidity × Eq. mass 

= 2 × 150

= 300

Then, 176 + 2 x 17 + 18x = 300, or x = 5

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