Question

find the odd man out a)Aluminium b)Methane c)Nickel d)Helium​

Answer 1

The ans is helium.

Rsn: it is an inert gas or halogen, Al,Methane ,& Ni are metals.

Hope the ans is fine....

Answer 2

Complicated question

But I think ......

There's a pair of odds i.e Al & Ni

And CH4 & He.

Hope it helps you

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