MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Decomposition Reaction

Heating of fe...

Question

Heating of ferrous sulphate crystals results in change in the colour of the crystals. This reaction is an example of:

A

Decomposition reaction

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

B

Combination reaction

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

C

Displacement reaction

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

D

Cannot be predicted

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

Open in App

Solution

The correct option is A Decomposition reaction
Ferrous sulphate crystals are green in colour. When they are heated, they lose the water of crystallisation and their colour changes to white. On further heating, ferric oxide is formed along with sulphur dioxide and sulphur trioxide. The colour of the product is very different from the initial crystals. Since in this reaction a single reactant breaks down into simpler products, it is a decomposition reaction.

$2 F e S O_{4} H e a t - -- \to F e_{2} O_{3} + S O_{2} + S O_{3}$

Suggest Corrections

thumbs-up

1

Similar questions

Q. (a) What is the colour of ferrous sulphate crystals? How does this colour change after heating?
(b) Name the products formed on strongly heating ferrous sulphate crystals. What type of chemical reaction occurs in this change? Write chemical equation of the reaction.

Q. While demonstrating decomposition reaction in laboratory the teacher heated ferrous sulphate crystals in a hard glass dry boiling tube.
(i) What change in the colour of ferrous sulphate crystals you will observe?
(ii) What type of smell does the gases coming out of the boiling tube would have?

Q. When green crystals of ferrous sulphate are heated, the colour of the crystals changes because:

Q. You want to study a decomposition reaction by taking ferrous sulphate crystals in a boiling tube.List two precautions you would follow while doing the experiment.

Q. The balanced chemical equation for the thermal decomposition of ferrous sulphate crystals is :

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Decomposition Reaction

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Decomposition Reaction

Standard X Chemistry

Join BYJU'S Learning Program

CrossIcon