Periodic Table · Chemistry · WB JEE
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WB JEE 2023
4f$$^2$$ electronic configuration is found in
WB JEE 2023
Suppose a gaseous mixture of He, Ne, Ar and Kr is treated with photons of the frequency appropriate to ionize Ar. What ion(s) will be present in the m...
WB JEE 2022
The correct pair of electron affinity order is
WB JEE 2021
5.75 mg of sodium vapour is converted to sodium ion. If the ionisation energy of sodium is 490 kJ mol$$-$$1 and atomic weight is 23 units, the amount ...
WB JEE 2020
Which of the following statements is not true for the reaction, 2F2 + 2H2O $$ \to $$ 4HF + O2 ?
WB JEE 2019
The second ionization energy of the following elements follows the order
WB JEE 2019
The melting points of (i) BeCl2 (ii) CaCl2 and (iii) HgCl2 follows the order
WB JEE 2019
Which of these species will have non-zero magnetic moment?
WB JEE 2019
The first electron affinity of C, N and O will be of the order
WB JEE 2018
Out of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one?
WB JEE 2017
Which of the following atoms should have the highest 1st electron affinity?