Which option is /are correct?

For a diatomic gas, which options is/are correct?

For a diatomic gas, which options is/are correct?

Which options are correct for atomic radii ?

Ozonized oxygen is passed through dry powdered KOH. Which option is not correct regarding the product obtained in the above process ?

Which option shows the correct net of a cylinder? a.

Which option shows the correct net of a cone? a.

Which option is correct for Urochordates ?