Question

Z forms chloride compounds with the formulae ZCl2 and ZC13.

ZCl2 is a pale green solid and ZC13 is a brown solid.

Based on the given information, which are true about element Z?

I Element Z has high melting point.

II Element Z can form complex ion.

III Element Z has more than one oxidation number.

IV Element Z is a metalloid.

A I, III
B II, IV
C I, II, III
D I, II, III, IV

Answer 1

(B) II, IV.

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