a 1.0*10-3 moles of chloride of an element X is completely hydrolysed. It ws found that the resulting solution required 20 ml of 0.1 N AgNO3 for complete precipitation of the chloride. then X could be
(A) Al
(B) P
(C) Si
(D) S
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1 Answers
262milimoles of AgNO3 = 20 * 0.1 =2
let no. of Cl atoms in each molecule be a
milimoles of Cl = a . 1 =a
therefore a=2
Mol. formula is X Cl2
hence answer is D) Sulphur
