Question

13. On burning her cotton handkerchief and a paper from her old notebook, naughty Sanjana found that both burned with the same odour and changed into grey ash. What can you conclude from this?

• A. Both cotton and paper are white in colour.
• B. Both are obtained from plants.
• C. Both are obtained from animals.
• D. It is just a coincidence.

Answer 1

The correct option is B

Both are obtained from plants.

• Cotton fibres are natural plant fibres that are obtained from the fruit of cotton plants known as cotton bolls.
• The fibre obtained from wood is used to make paper. Thus, paper is also made from plants.
• It means that both paper and cotton are plant products. Hence, cotton yarn on burning gives an odour similar to that of a burning paper
• Even both cotton and paper are white in colour. But this is not the reason for the same odour and changed into grey ash.

Therefore, the correct answer is an option (A)