Consider the following crops:<br/>1. Cotton<br/>2. Groundnut<br/>3. Rice<br/>4. Wheat<br/><br/>Which of these are Kharif crops?

1. Cotton – A major Kharif crop, sown with the onset of monsoon. Correct.
2. Groundnut – Commonly grown as a Kharif crop in India, though some regional variation exists. Correct.
3. Rice – The principal Kharif crop, dependent on monsoon rainfall. Correct.
4. Wheat – A classic Rabi crop, sown in winter and harvested in spring. Incorrect.

Hence, 1, 2 and 3 are Kharif crops.