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Q5.
Ans: a,c.
Can expert explain about option B and C.

Q5. Ans: a,c. Can expert explain about option B and C. More ,t.4gq correct; TWO gases A and B which react according to the equation (g) (g) to give two gases C and D are taken (amount not known) in an Eudiometer tube (operating at a constant Pressure and temperature) to cause the above. lfon causing the reaction there is no volume change observed then which ofthe following statement islare correct. ( B) average molecular mass may increase or decrease if either of A or B is present in limited amount. (C) Vapour Density of the mixture will remain same throughout the course of reaction. (D) Total moles ofall the component ofmixture will change.

Dear student

​​​​​Ideal gas equation is,

PV=nRT
Therefore, if pressure temperature and volume is constant, the number of moles of the product and the reactant will be same.
Thus the total molar mass of the product and the reactant will also remain constant.
Therefore, vapour density will remain constant and hence option A and C are correct.

Regards

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