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d and f Block Elements

Chemistry

Previous Years Questions

MCQ (Single Correct Answer)

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The correct order of acidity of the following hydra acids is
WB JEE 2022
A solution of NaNO3, when treated with a mixture of Zn dust and 'A' yields ammonia. 'A' can be
WB JEE 2021
The reaction for obtaining the metal (M) from its oxide (M2O3) ore is given by$${M_2}{O_3}(s) + 2Al(l)\buildrel {Heat} \...
WB JEE 2020
$$[X] + Dil.\,{H_2}S{O_4} \to [Y]:$$ Colourless, suffocating gas$$[Y] + {K_2}C{r_2}{O_7} + {H_2}S{O_4} \to $$ Green colo...
WB JEE 2018
At room temperature, the reaction between water and fluorine produces
WB JEE 2018
The correct basicity order of the following lanthanide ions is
WB JEE 2017

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