Single Choice

Which sulphate on strong heating gives $$SO_2$$ and $$SO_3$$?

A$$FeSO_4$$
B$$CuSO_4$$
C$$Fe_2(SO_4)_3$$
Correct Answer
D$$CaSO_4$$

Solution

SIMILAR QUESTIONS

d - block and f - block Elements

Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning Sulphur. Write the chemical reaction involved and identify the type of reaction.

d - block and f - block Elements

Light green crystals of ferrous sulphate lose water molecule and turn brown on exposure to air. This is due to its oxidation to

d - block and f - block Elements

Ferrous sulphate on strong heating gives

d - block and f - block Elements

Green vitriol is

d - block and f - block Elements

How will you obtain: Ferric chloride from ferrous sulphate.

d - block and f - block Elements

How will you obtain: Ferric sulphate from Mohr's salt.

d - block and f - block Elements

A certain inorganic compound $$(A)$$ on heating loses its water of crystallization. On further heating, a blackish-brown powder $$(B)$$ and two oxides of sulphur, $$(C)$$ and $$(D)$$ are obtained. The powder $$(B)$$ on boiling with hydrochloric acid gives a yellow solution $$(E)$$. When $$H_2S$$ is passed in $$(E)$$ a white turbidity $$(F)$$ and a apple green colour $$(G)$$ are obtained. The solution $$(E)$$ on treatment with thiocyanate ions gives a blood-red coloured compound $$(H)$$. Identify from $$(A)$$ to $$(H)$$.

d - block and f - block Elements

Compound $$(A)$$ is a light green solid. It gives following tests: It dissolves in dilute $$H_2SO_4$$ No gas is evolved.

d - block and f - block Elements

Compound $$(A)$$ is a light green solid. It gives following tests: A drop of $$KMnO_4$$ is added to the above solution. The pink colour is decolourised.

d - block and f - block Elements

Compound $$(A)$$ is a light green solid. It gives following tests: Compound $$(A)$$ is heated strongly. Gaseous $$(B)$$ and $$(C)$$ with pungent smell come out and a brown residue $$(D)$$ is left.

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