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Which statement is incorrect?
A prime number is only divisible by 1 and itself.
All prime numbers are odd
If a number is divisible by 2 and 3, it is divisible by 6.
1 is not a prime number
Which statement is incorrect about transition elements
They show variable oxidation states.
Their compounds are often colored.
They often exhibit catalytic activity.
They have completely filled d subshells in all their oxidation states.
The magnetic moment of a transition metal ion is 3.87 BM. The number of unpaired electrons present in it is
2
3
4
5
Which statement about corrosive sublimate is incorrect?
It is prepared by heating mercury in chlorine
It reduces stannic chloride
It oxidizes stannous chloride
It sublimes readily