What are the possible changes occur during a chemical reaction?

Evolution of gas

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Change in Colour

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Formation of Precipitate

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A new element is formed

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Solution

The correct options are
A
Evolution of gas

B
Change in Colour

C
Formation of Precipitate

Chemical reactions are characterised by changes that are quite easily observed. Some of these changes are :

(1) Evolution of gas

(2) Change of colour

(3) Formation of precipitate

(4) Change of state

(5) Change in energy

Suggest Corrections

Similar questions

Write the chemical reaction where the following changes are observed.

(a) Gas is evolved

(b) Colour change is noticed

(d) Physical state is changed

The chemical reaction between quicklime and water is characterised by :
(a) evolution of hydrogen gas

(b) formation of slaked lime precipitate

(d) change in colour of the product

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