ಕೆಳಗಿನ ಯಾವ ಅನಿಲವು ಬಣ್ಣರಹಿತ ಮತ್ತು ವಾಸನಾರಹಿತವಾಗಿಲ್ಲ? A. ಸಾರಜನಕ B. ಕ್ಲೋರಿನ್ C. ಜಲಜನಕ D. ಆಮ್ಲಜನಕ

Nitrogen, hydrogen and oxygen are all colourless and odourless gases. Chlorine is the exception: it is a greenish-yellow gas with a sharp, pungent, choking smell (the smell noticed near bleach or swimming pools). So chlorine is the gas that is not colourless and odourless.