Assertion (A) The atomic and ionic radii are generally decrease towards right in a period.Reason (R) The ionisation enthalpy increases on moving towards left in a period
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a
Both A and R are correct; R is the correct explanation of A.
b
Both A and R are correct; and R is not the correct explanation of A.
c
A is correct; R is incorrect.,
d
R is correct; A is incorrect.
answer is C.
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Detailed Solution
The ionisation enthalpy increases on moving towards the extreme right element in period and atomic and ionic radii decrease in a period from left to right.
Assertion (A) The atomic and ionic radii are generally decrease towards right in a period.Reason (R) The ionisation enthalpy increases on moving towards left in a period