Which of the following salts is coloured but gives white residue in dry heating test?

Berium carbonate

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

Barium chloride dihydrate

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

Copper (II) sulphate pentahydrate

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

Copper (II) chloride

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

Open in App

Solution

The correct option is C Copper (II) sulphate pentahydrate
Copper (II) sulphate pentahydrate, loose its water of crystalisation on heating hence gives white residue in dry heating test.

Suggest Corrections

Similar questions

From the list of following salts choose the salt that most appropriately fits the descriptions given in the following:

[A g C l, M g C l_{2}, N a H S O_{4}, P b C O_{3}, Z n C O_{3}, K N O_{3}, C a (N O_{3})_{2}]

(i) A deliquescent salt.
(ii) An insoluble chloride
(iii) On heating, this salt gives a yellow residue when hot and white when cold.
(iv) On heating this salt, a brown coloured gas evolved.

Select from the following group of these salts which may be dissolved in water to make it hard.

(I) Sodium chloride
(II) Sodium sulphate
(III) Calcium chloride
(IV) Calcium sulphate
(V) Potassium chloride
(VI) Magnesium sulphate

Q. Answer the questions below, relating your answers only to salts in the following list:
sodium chloride, anhydrous calcium chloride, copper sulphate-5-water.
(i) What is the name given to the water in the compound copper sulphate-5-water?
(ii) If copper sulphate-5-water is heated, the water is driven off leaving anhydrous copper sulphate. What is the colour of anhydrous copper sulphate?
(iii) By what means, other than heating, can you dehydrate copper sulphate-5-water and obtain anhydrous copper sulphate?
(iv) Which one of the salts in the given list is deliquescent?

Q. Give the equation for the preparation of each of the following salts from the starting material given.
(i) Copper sulphate from copper (II) oxide,
(ii) Iron (III) chloride from Iron.
(iii) Potassium sulphate from potassium hydroxide solution.
(iv) Lead chloride from lead carbonate (two equations).

Q. The questions (i) to (v) refer to the following salt solutions listed (a) to (f):
(a) Copper nitrate
(b) Iron (II) sulphate
(c) Iron (III) chloride
(d) Lead nitrate
(e) Magnesium sulphate
(f) Zinc chloride

(i) Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by barium chloride solution?
(ii) Which two solution will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?
(iii) Which solution will give a white precipitate when either dilute hydrochloric acid or dilute sulphuric acid is added to it?
(iv) Which solution becomes a deep/inky blue colour when excess of ammonium hydroxide is added to it?
(v) Which solution gives a white precipitate with excess ammonium hydroxide solution?

Join BYJU'S Learning Program

Which of the following salts is coloured but gives white residue in dry heating test?

The correct option is C Copper (II) sulphate pentahydrateCopper (II) sulphate pentahydrate, loose its water of crystalisation on heating hence gives white residue in dry heating test.

The correct option is C Copper (II) sulphate pentahydrate
Copper (II) sulphate pentahydrate, loose its water of crystalisation on heating hence gives white residue in dry heating test.