An element which can exhibit valencies o...

An element which can exhibit valencies of `2`, `4` and `6` can be :

A

copper

B

iron

C

mercury

D

sulphur

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The correct Answer is:

D

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LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise

The anion of an element has :
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A particle X has 17 protons, 18 neutrons and 18 electrons. This part...
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An element which can exhibit valencies of 2, 4 and 6 can be :
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The cation of an element has :
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