An aqueous solution of a mixture of two inorganic salts, when treated with dilute $H C l$ , gave a precipitate (P) and filtrate (Q). The precipitate P was found to dissolve in hot water.
The filtrate (Q) remained unchanged, when treated with $H_{2} S$ in dilute mineral acid medium. However, it gave a precipitate (R) with $H_{2} S$ in an ammoniacal medium. The precipitate R gave a coloured solution (S ), when treated with $H_{2} O_{2}$ in an aqueous NaOH medium.
The coloured solution S contains:

F e_{2} (S O_{4})_{2}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C u S O_{4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Z n S O_{3}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

N a_{2} C r O_{4}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D $N a_{2} C r O_{4}$

Suggest Corrections

Similar questions

An aqueous solution of a mixture of two inorganic salts, when treated with dilute HCl, gave a precipitate (P) and a filtrate (Q). The precipitate (P) was found to dissolve in hot water. The filtrate (Q) remained unchanged when treated with $H_{2} S$ in a dilute mineral acid medium. However, it gave a precipitate (R) with $H_{2} S$ in an ammoniacal medium. The precipitate R gave a coloured solution (S) when treated with $H_{2} O_{2}$ in an aqueous NaOH medium.

The precipitate P contains