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Published on: 28/08/2019
State of Matter
Download CBSE Class 11th Standard CBSE Chemistry question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 11th Standard CBSE Chemistry
Questions + Answers key
Take MCQ Chemistry Test
1.
Name two intermolecular force that exists between HF molecules in a liquid state.
2.
What is the value of gas constant in SI units?
3.
Which of the following gases will have the lowest rate of diffusion?
H2
N2
F2
O2
4.
The compressibility factor, z for an ideal gas is
zero
less than one
greater than one
equal to one
5.
In van der Waals equation of state for a non-ideal gas the net force of attaction among the molecules is given by
\(\frac{an^2}{V^2}\)
P+\(\frac{an^2}{V^2}\)
P-\(\frac{an^2}{V^2}\)
-\(\frac{an^2}{V^2}\)
6.
The cleansing action of soaps and detergents is due to
internal friction
high hydrogen bonding
viscosity
surface tensions
7.
For one mole of a gas, the ideal gas equation is
PV =\(\frac{1}{2}\)RT
PV=RT
PV =\(\frac{3}{2}\)RT
PV =\(\frac{5}{2}\)RT
1.
( )
HF molecules are polar covalent molecules.In a liquid state, there are dipole-dipole interactions and H-bonding.
2.
( )
8.314 JK-1 mol = -1
3.
(c)
F2
4.
(d)
equal to one
5.
(a)
\(\frac{an^2}{V^2}\)
6.
(d)
surface tensions
7.
(b)
PV=RT
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