Question

A potted plant it is kept in a dark place for 2 days. A leaf is plucked from the plant and is tested for the presence of starch by carrying out iodine test. When iodine solution is poured over the leaf, the leaf turns​

Answer 1

Answer:

If the leaf contains starch, the leaf will turn blue-black in colour. But as the plant was kept in dark, it will not turn blue-black in colour.

Explanation:

This shows that sunlight is necessary for photosynthesis.