Prolonged heating is avoided during the preparation of ferrous ammonium sulphate to
d & f-Block Elements · Class 12 · JEE Main Previous Year Question
Prolonged heating is avoided during the preparation of ferrous ammonium sulphate to
- a
Prevent hydrolysis
- b
Prevent reduction
- c
Prevent breaking
- d✓
Prevent oxidation
Prevent oxidation
Practice this question with progress tracking
Want timed practice with adaptive difficulty? Solve this question (and hundreds more from d & f-Block Elements) inside The Crucible, our adaptive practice platform.
More JEE Main d & f-Block Elements PYQs
While preparing crystals of Mohr's salt, dil H2SO4 is added to a mixture of ferrous sulphate and ammonium sulphate, before dissolving this mixture in water, dil H2SO4 is added here to :
NaCl reacts with conc. H2SO4 and K2Cr2O7 to give reddish fumes (B), which react with NaOH to give yellow solution (C). (B) and (C) respectively are :
In chromyl chloride test for confirmation of Cl- ion, a yellow solution is obtained. Acidification of the solution and addition of amyl alcohol and 10% H2O2 turns organic layer blue indicating…
A and B formed in the following reactions are: CrO2Cl2 + 4NaOH A + 2NaCl + 2H2O A + 2HCl + 2H2O2 B + 3H2O
Identify correct statements from below: A. The chromate ion is square planar. B. Dichromates are generally prepared from chromates. C. The green manganate ion is diamagnetic. D. Dark green coloured…