NEET Chemistry Classification Of Elements and Periodicity In Properties MCQs Set B

    Question: Modern periodic law is a) The physical and chemical properties of the elements are periodic function of their atomic numbers b) The physical and chemical properties of the elements depend upon the energy of the electrons c) The physical and…

NEET Chemistry Classification Of Elements and Periodicity In Properties MCQs Set A

    Question:  What is the value of electron gain enthalpy of Na+ if IE1 of Na = 5.1 eV?  a) +2.55 eV b) +10.2 eV c) –5.1 eV d) –10.2 eV Answer: –5.1 eV   Question: Which one of the following arrangements represents the correct…