mcq chemistry

[ashish]

ok one MCQ question

In 1982, LOrd Rayleigh made 'atmospheric nitrogen' by removing oxygen from atmosphere .he found the density of this nitrogen to be 1.2572gdm^-3 at s.t.p . Chemically pure nitrogen has a density of 1.2505gdm^-3.

which gas was present in 'atmospheric nitrogen' to create this discrepancy?

A argon
B helium
C methane
D neon

[Deadly_king]

ok one MCQ question

In 1982, LOrd Rayleigh made 'atmospheric nitrogen' by removing oxygen from atmosphere .he found the density of this nitrogen to be 1.2572gdm^-3 at s.t.p . Chemically pure nitrogen has a density of 1.2505gdm^-3.

which gas was present in 'atmospheric nitrogen' to create this discrepancy?

A argon
B helium
C methane
D neon

I guess it should be Argon since it is the most abundant inert gas in atmospheric air.

If you try to calculate the Ar of the gas present, it does not lead to any of the answers.

[ashish]

ah ok thank you !

[Deadly_king]

ah ok thank you !

Anytime br0

But am not 100% confident.

If possible contact your teacher for confirmation.

[hell0]

Oh wheww
I did a double bond for the C2O question

Paper 32 ppl: How did you find the organic part of the paper?

[Deadly_king]

Oh wheww
I did a double bond for the C2O question

Paper 32 ppl: How did you find the organic part of the paper?

Yeah C₂0 has 2 double bond.

C=C=O

I already explained it here.(on the 1st page)

P32 was pretty easy

How did you find your paper?