MolSynapse
question bank
All chapters
NEET
JEE
Practice
MolSynapse
/
Question bank
/
Gaseous State: Ideal Gases
/
Density and molar mass of gases
JEE Main level
Single correct option
Difficulty 2 of 3
ig127
A gas has a density of
2.86
g
L
−
1
at STP (molar volume
22.4
L
). The gas is most likely
A
SO
X
2
(64)
B
Cl
X
2
(71)
C
CO
X
2
(44)
D
NO
X
2
(46)
Answer: A
M
=
d
×
22.4
=
2.86
×
22.4
=
64.1
g
mo
l
−
1
, which matches
SO
X
2
(64).
Practice Gaseous State: Ideal Gases
More on Density and molar mass of gases
Previous question
Next question
More questions on Density and molar mass of gases
A gas mixture of He (4) and O2 (32) has an average molar mass of 11 g mol^-1. Which are correct?
JEE Advanced level
The vapour density of a gas is defined as the ratio of its density to the density of
NEET level
Which expression gives the molar mass M of an ideal gas of density d at pressure P and temperature T?
NEET level
At 273 K and 1 atm the density of a gas is d. At 546 K and 4 atm its density is
JEE Main level
The density of ethane, C2H6 (molar mass 30 g mol^-1), at 400 K and 1.5 atm, taking R = 0.0821 L atm K^-1 mol^-1, in g L^-1 (three decimals) ...
JEE Main level
A gas has density 0.880 g L^-1 at 350 K and 1.00 atm. Taking R = 0.0821 L atm K^-1 mol^-1, its molar mass in g mol^-1 (one decimal) is
JEE Main level