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Gaseous State - 1 - JEE MCQ

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30 Questions MCQ Test - Gaseous State - 1

Gaseous State - 1 for JEE 2024 is part of JEE preparation. The Gaseous State - 1 questions and answers have been prepared according to the JEE exam syllabus.The Gaseous State - 1 MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Gaseous State - 1 below.

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Gaseous State - 1 - Question 1

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A cylinder of V litre capacity contains ammonia gas. This cylinder is inverted over another vessel of V litre capacity containing hydrogen chloride at the same temperature and pressure. The pressure in the cylinder after sometime will

A.
Remain same
B.
Become 3/2 of the original pressure
C.
Double
D.
Drop

Detailed Solution for Gaseous State - 1 - Question 1

As per Gay Lussac’s Law, when pressure and temperature are same V directly proportional to the moles. Let n moles of NH₃ and n moles HCl after some time they react and form n moles NH₄Cl and hence pressure drops.

Gaseous State - 1 - Question 2

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Standard enthalpy of vaporization is taken at:

A.
273 K
B.
0°C
C.
25°C
D.
298 K

Detailed Solution for Gaseous State - 1 - Question 2

The standard enthalpy of vaporization of water at 298 K and 1 bar is thus:

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Gaseous State - 1 - Question 3

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The standard boiling point of the liquid is

A.
The boiling point at 2 atm pressure.
B.
The boiling point at 1 bar pressure.
C.
The temperature at which a liquid converts to gas.
D.
The boiling point at 1 atm pressure.

Detailed Solution for Gaseous State - 1 - Question 3

The standard boiling point is defined as the temperature at which boiling takes place under a pressure of 1 bar.

Whereas, the normal boiling point is defined as the temperature at which the vapour pressure of the liquid is equal to 1 atm at sea level.

Since 1 atm is equal to 1.01325 bar and hence is greater than 1 bar, the normal boiling point temperature is greater than the standard boiling point temperature.

Gaseous State - 1 - Question 4

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In the process of conversion of a solid to liquid the average distance between the molecules is

A.
10^-8 cm
B.
beyond 10^-7 cm
C.
beyond 10^-6 cm
D.
10^-2 cm

Detailed Solution for Gaseous State - 1 - Question 4

The correct answer is option B
In ordered solids, the atomic spacing between two bonded atoms is generally around a few ångströms (Å), which is on the order of 10−10 meters. However, in very low density gasses (for example, in outer space) the average distance between atoms can be as large as a meter.

Gaseous State - 1 - Question 5

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Gaseous State - 1 - Question 6

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Gaseous State - 1 - Question 7

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A.
1 : 4
B.
7 : 32
C.
1 : 8
D.
3 : 16

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Gaseous State - 1 - Question 8

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Gaseous State - 1 - Question 9

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A.
1/2
B.
8/9
C.
1/9
D.
16/17

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Gaseous State - 1 - Question 10

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Gaseous State - 1 - Question 11

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A.
PT/R
B.
PRT
C.
P/RT
D.
RT/P

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Gaseous State - 1 - Question 12

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Gaseous State - 1 - Question 13

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Gaseous State - 1 - Question 14

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Gaseous State - 1 - Question 15

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A.
1.5
B.
1.0
C.
2.0
D.
∞

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Gaseous State - 1 - Question 16

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Gaseous State - 1 - Question 17

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Gaseous State - 1 - Question 18

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A.
1.0
B.
4.5
C.
1.5
D.
3.0

Detailed Solution for Gaseous State - 1 - Question 18

Gaseous State - 1 - Question 19

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A.
4
B.
2
C.
1
D.
0.5

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Gaseous State - 1 - Question 20

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Gaseous State - 1 - Question 21

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Gaseous State - 1 - Question 22

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Gaseous State - 1 - Question 23

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Gaseous State - 1 - Question 24

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Gaseous State - 1 - Question 25

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Gaseous State - 1 - Question 26

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Gaseous State - 1 - Question 27

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Gaseous State - 1 - Question 28

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Gaseous State - 1 - Question 29

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Gaseous State - 1 - Question 30

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