Same quantity of electricity was passed through solutions of sales of elements X, Y and Z with atomic masses 7,27 and 48 respectively. The mass of X, Y and Z deposited were 2.1 ~g , 2.7 ~g and 7.2 ~g respectively. The valence's of X, Y and

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Same quantity of electricity was passed through solutions of sales of elements X, Y and Z with atomic masses 7,27 and 48 respectively. The mass of X, Y and Z deposited were 2.1 ~g , 2.7 ~g and 7.2 ~g respectively. The valence's of X, Y and Z respectively are

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Correct answer: C. 1,3 and 2

According to Faraday's law array rlr W & =Z Q & [W= weight of substance ] & = E Q 96500 [E= Equivalent weight ] array For X 2.1= (7 / x) Q 96500 For Y 2.7= (27 / y) Q 96500 For Z aligned 7.2 & = (48 / z) Q 96500 x: y: z & = ( 7 2.1 ): ( 27 2.7 ): ( 48 7.2 ) & =3.33: 10: 6.66 1: 3: 2 aligned

Same quantity of electricity was passed through solutions of sales of elements X, Y and Z with atomic masses 7,27 and 48 respectively. The mass of X, Y and Z deposited were 2.1 ~g , 2.7 ~g and 7.2 ~g respectively. The valence's of X, Y and Z respectively are

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