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State of Matter MCQ Question with Answer

State of Matter MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 50
At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

CH3COOH<C2H5OH<C2H5I
C2H5I<CH3COOH<C2H5OH
C2H5I<C2H5OH<CH3COOH
C2H5OH<C2H5I<CH3COOH
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Question No : 51
Which of the following methods is used to determine the atomic weight?

Victor Meyer's method
Dumas' method
Cannizaro's method
None of these
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Question No : 52
How many nearest neighbours are there in an octahedral hole of a close packed structure

4
6
8
12
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Question No : 53
In the process of sublimation, the substance transforms directly

from the solid state to the liquid state
from the liquid state to gaseous state
from the solid state to gaseous state
from the liquid state to solid state
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Question No : 54
Which of the following will have low heat of fusion?

a molecular solid
an ionic solid
a metallic solid
a network of covalent solid
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Question No : 55
Number of molecules of carbon dioxide present in 44 gm CO2 is

12 x 1023 approximately
3 x  1010 approximately
6 x  1010 approximately
3 x 1023 approximately
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Question No : 56
Kinetic theory of gases postulates :

The molecules in a gas are in stationary state
The molecules in a gas exert appreciable attraction on each other
The molecules move in a random motion with widely different velocities
The molecules in a gas collide against each other as well as the wall of the container, but do not change their direction of motion
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