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`        A gaseous mixture of S2 and co2 gas contain 66% mass of co2. the vapour density of the mixture :A. 6.1B. 5.4C. 2.7 D.  10.8`
9 months ago

Arun
15090 Points
```							Dear Akash H2 should be in place of S2. Otherwise this question is wrong according to the options. Let total moles of mixture be 100gMoles of CO2 = 66gThen hydrogen will be = 34gNumber of moles of CO2=66/44=1.5Numbsr of moles if H2=34/2=17Total moles =1.5+17=18.5Formula to be used:Mavg= Total mass/ total moles= 100/18.5=5.40VAPOUR DENSITY= MAvg/2=5.40/2=2.70So, VAPOUR density of mixture is 2.7   RegardsArun (askIITians forum expert)
```
9 months ago
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