Question

Choose the correct option on the basis of two statements (i) and (ii) (i) Hydrogen gas reacts with oxygen gas to form liquid water. (ii) Liquid water on evaporation changes to water vapour.
A) (i) is a chemical change, (ii) is a physical change B) (i) is a physical change, (ii) is a chemical change C) Both (i) and (ii) are physical changes D) Both (i) and (ii) are chemical changes

Answer 1

In this question ,

(A), (i) is a chemical change (ii) is a physical change .

'cause , water cannot converted into hydrogen again .

The evaporate water can be change into water .