First slide

Hydrogen

Question

Element (X) does not form Hydride when reacts with dihydrogen. Atomic number of element (X) is

Moderate

A

15
B

19
C

23
D

44

Solution

Z = 15 element is P forms covalent hydride
Z = 19 element is K forms Ionic hydride
Z = 23 element is V forms metallic or interstitial hydride
Z = 44 element is Ru belonging to 8 group does not form hydride

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