Assertion (A) : First ionization enthalpy of nitrogen is lower than that of oxygen. Reason (R) : Across a period effective nuclear charge decreases Correct answer is,

Assertion (A) : First ionization enthalpy of nitrogen is lower than th

1.	Assertion (A) : First ionization enthalpy of nitrogen is lower than that of oxygen. Reason (R) : Across a period effective nuclear charge decreases Correct answer is,
Answer» Both (A) and (R) are CORRECT and (R) is the correct EXPLANATION of the (A) Both (A) and (R) are correct and (R) is not the correct explanation of the (A) (A) is correct and (R) is incorrect Both (A) and (R) are incorrect Answer :d