Statement 1 : Ionisation potential across the period is Na < Al < Mg < Si.Statement 2 : Ionisation potential decreases with decrease in atomic size.
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a
Both Statement 1 and Statement 2 are true.
b
Statement 1 is true and Statement 2 is false.
c
Statement 1 is false and Statement 2 is true.
d
Both Statement 1 and Statement 2 are false.
answer is B.
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Detailed Solution
Statement 1 is true but statement 2 is false.Ionization potential decreases with increase in atomic size and also for a given shell. I.E. is in given order.s > p > d > f