1.

On being heated in oxygen, 3.120 g of a metal M converts to 4.560 g of oxide (atomic weight of M = 52.0). Mark out the correct statement(s)

Answer»

Equivalent wt. of metal M = 17.33
Number of equivalents of oxygen REACTED with metal = 0.09
Metal M forms halide `MCI_2`
The simplest formula of the metal oxide which it forms is `M_(2)O_3`

Solution :WEIGHT of oxygen reacted
`= 4.560 - 3.120 = 1.440`
No. of equivalents `=(1.440)/8 = 0.18`
Equivalent weight of metal = `(3.12 ) /(1.44) XX 8 = 17.33`
Valency ` =(52)/(17.33) = 3`


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