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In a flask, the weight ratio of CH4 (g) ...

In a flask, the weight ratio of `CH_4 (g)` and`SO_2(g)` at 298 K and 1 bar is `1 : 2`. The ratio of the number of molecules of `SO_2(g)` and `CH_4(g)` is _______.

A

(y-2x)

B

(2x+y)

C

(x+y)

D

2x-y

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