Gaseous State NSEJS 2018 PYQ L-9

Описание: Deepa was studying properties of gases.She took a flash and filled it with sulphur dioxide gas, and
weighed it at temperature T and pressure P. The weight of the flask containing the gas was found to
be W1. She then flushed the flask, cleaned and filled it with methane at the same temperature and
pressure.The weight of the flask containing oxygen was found to be W2. She repeated the process
with oxygen under the same conditions and found the weight to be W3. The ratio of the weights W1 :
W2 : W3 is [IJSO/Stage-1/2018]
(A) 2 : 1 : 4 (B) 4 : 2 : 1 (C) 4 : 1 : 2 (D) 1 : 2 : 4