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Q.

In which of the following pairs, l0 g of each have an equal number of molecules?

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a

$N_{2} and CO$

b

$N_{2} and C_{2} O_{2}$

c

$N_{2} O and {CO}_{2}$

d

$N_{2} O and CO$

answer is C, D.

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Detailed Solution

Equal number of molecules are present when moles are same. For the same mass the molecular weight has to be same.

Hence Mw of N₂ = Mw of CO = 28 g

Mw of N₂O = Mw of CO₂ = 44g

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