![]() ![]() (iii) Assertion and reason both are correct statements and reason is correct (ii) Assertion is correct statement but reason is wrong statement. (i) Assertion and reason both are correct statements but reason is not Inner core of electrons than the 2s electrons. The 2p electron hence 2p electron is more shielded by the Reason (R) : The penetration of a 2s electron to the nucleus is more than (iv) Assertion is wrong statement and reason is correct statement.Ĭorrect Answer: (ii) Assertion and reason both are correct statements and reason is correctĢ.Assertion (A) : Boron has a smaller first ionisation enthalpy than beryllium. (iii) Assertion and reason both are wrong statements. (ii) Assertion and reason both are correct statements and reason is correct (i) Assertion is correct statement and reason is wrong statement. Same principal quantum level, the shielding effect of innerĬore of electrons does not increase very much to compensateįor the increased attraction of the electron to the nucleus. Reason (R) : When successive electrons are added to the orbitals in the Solve Assertion and Reason type of questions based on chapter Classification of Elements and Periodicity in Properties from class 11 Chemistry.ġ.Assertion (A) : Generally, ionisation enthalpy increases from left to right in a
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