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A gas is found to have a formula [CO](x)...

A gas is found to have a formula `[CO]_(x)`. If its vapour density is 70, then value of x is

A

`2.0`

B

`3.0`

C

`5.0`

D

`6.0`

Text Solution

Verified by Experts

The correct Answer is:
C
Molecular mass = `2xx` vapour density
`x[CO]=2xx70 or x[12+16]=140`
`implies 28x=140`
`therefore x=(140)/(28)=5.0`
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MTG IIT JEE FOUNDATION-MOLE CONCEPT, STOICHIOMETRY AND BEHAVIOUR OF GASES -EXERCISE (MCQ)
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  2. The total pressure of a mixture of two gases is

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  3. A gas is found to have a formula [CO](x). If its vapour density is 70,...

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  4. In the gas equation, PV = nRT

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  5. Which one of the following plots will be a parabola at constant temper...

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  6. The kinetic theory of gases predicts that total kinetic energy of a ga...

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  7. Volume occupied by an ideal gas at one atmospheric pressure and 0^@C i...

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  8. When gases are heated from 20^(@) to 40^(@) C at constant pressure the...

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  9. In the equation of state of an ideal gas PV = nRT, the value of univer...

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  10. If the absolute temperature of a gas is doubled and the pressure is re...

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  11. The percentage of nitrogen in urea is about:

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  12. To neutralise 100 mL of 0.1 N H(2)SO(4), amount of 2N NaOH required is

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  13. A metal oxide contains 60% metal . The equivalent weight of metal is

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  14. The simplest formula of a compound containing 50% of element X (atomic...

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  15. In a hydrocarbon the mass ratio of hydrogen to carbon is 1:3. The empi...

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  16. The molecular mass of a compound is 88 amu having empirical formula of...

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  17. If 0.56 g KOH is present in 100 mL of solution, then its normality wil...

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  18. To prepare 600 mL of 2 N solution of NH(4)OH, volume of 10 N NH(4)OH r...

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  19. Normality of an acid is equal to

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  20. Number of moles of solute dissolved per litre of solution is

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