JEE Advanced questions
3844 published questions with worked solutions.
- The ability of d-block elements to form complexes is due to
- Cl_2 gas is obtained by various reactions but not by
- The reactivity of transition elements decreases with
- In alkaline H_2O_2, Cr_2O_7^ 2- changes to a tetraperoxo species having the oxidation number of Cr as
- Na_2S_2O_3
- In Na_2[Fe(CN)_5NO], sodium nitroprusside,
- Due to lanthanide contraction
- The basic and amphoteric oxides of transition metals are
- On passing Cl_2 gas into alkaline hydrated Fe_2O_3 solution
- In acidic medium H_2O_2 changes K_2Cr_2O_7 to CrO_5 (deep violet solution in ether), having two peroxy linkages. The oxidation...
- KMnO_4 spot can be bleached by
- Given below, catalyst and corresponding process/reaction are matched. The mismatch is
- Which shows maximum magnetic moment among the bivalent ions of the first transition series?
- Lanthanoids are
- Select the correct statement(s) about [CoCl_6]^ 4- complex.
- Which are correct statements about KMnO_4?
- Select the correct statement(s) about oxides of d-block elements.
- Why does aqueous Fe(III) ion develop an intense red colour when it reacts with the SCN^- ion, while Fe(II) ion does not?
- Which of the following are coloured due to charge transfer?
- Standard reduction electrode potential at Zn^ 2+ /Zn is −0.76 V. This means