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A solid element (symbol Y) conducts electricity and forms two chlorides YCln (colourless volatile liquid) and YCln-2 (a colourless solid).

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A solid element (symbol Y) conducts electricity and forms two chlorides YCln (colourless volatile liquid) and YCln-2 (a colourless solid). To which one of the following groups of the periodic table does Y belong?

(a) 13

(b) 14

(c) 15

(d) 16

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Correct answer: (b) 14

Explanation:

SnCl4 is colourless volatile liquid and SnCl2 is colourless solid Sn conducts electricity and it belongs to 14 group.

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