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Periodic Table

Chemistry

Previous Years Questions

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The correct pair of electron affinity order is
WB JEE 2022
5.75 mg of sodium vapour is converted to sodium ion. If the ionisation energy of sodium is 490 kJ mol$$-$$1 and atomic w...
WB JEE 2021
Which of the following statements is not true for the reaction, 2F2 + 2H2O $$ \to $$ 4HF + O2 ?...
WB JEE 2020

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