An element has six electrons in its outermost shell, then its valency can be _________.
A
6
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B
2
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C
4
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D
All of the above
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Solution
The correct option is D All of the above Sulphur has 6 electrons in it's outermost shell. It's valency is 2 in H2S. 6 in SO3, SF6 etc. 4 in SO2, SOF2 etc.
(Valency is the number of electrons gained, lost or shared during a chemical reaction.)