Assertion: Generally, ionisation enthalpy increases from left to right in a period. Reason: When successive electrons are added to the orbitals in the same principal quantum level, the shielding effect of inner core of electrons does not increase very much to compensate for the increased attraction of the electron to the nucleus.

Question

Assertion: Generally, ionisation enthalpy increases from left to right in a period. Reason: When successive electrons are added to the orbitals in the same principal quantum level, the shielding effect of inner core of electrons does not increase very much to compensate for the increased attraction of the electron to the nucleus. (A) Assertion is correct statement and reason is wrong statement. (B) Assertion and reason both are correct statements and reason is correct explanation of assertion. (C) Assertion and reason both are wrong statements. (D) Assertion is wrong statement and reason is correct statement.

Tardigrade Admin · Accepted Answer

Correct answer is (b) Assertion and reason both are correct statements and reason is correct explanation of assertion.