1st Year Chemistry MCQs Chapter No.3 Gases Online Exams

Chemistry MCQs 1st Year Chapter No.3 Gases, FSc, First Year Multiple Choice Questions, Medical College ( MDCAT ) , ECAT & University Admission Entry Test Exams Online Preparation, Chapter Wise Question Answers Notes in Pdf, Old Board Papers reference with Each Question, All Queries accommodated within 24 Hours. Click here to Contact us for any Query/Question regarding Exams.

All Candidates / Students which completed F.Sc. (Pre-Medical or Pre-Engineering Exams) with Excellent Score and seeking for Preparation of Any Exams for Job Test or Entrance Test in Medical or Engineering Universities and Colleges, They Will find the Sample Papers , Sample Test on this page. All Preparation Material for PMC (Pakistan Medical Commission), ECAT (Engineering College Admission Test) or For MDCAT (Medical and Dental College Admission Test are free of Cost. All Students will able to download or allow to save in Pdf format or E Book. The Study Material from F.Sc. Textbooks. These Online Quiz in form of Question Answers. We try to present the Multiple Choice Questions in Best form and Chosen from Past Board and MDCAT old Papers. We make a best selection of MCQs (Multiple Choice Questions) with Questions and Answers for Admission Test on our website. All These MCQs are authentic and taking after our Verification of our Audit Teams from different areas of the World. These Thousands of MCQs cover different Topics on CHEMISTRY Part-1. These MCQs are best for 1^st Year Students. If they feel than they inform to other 11^th Class Students to help them. All These MCQs (Multiple Choice Questions) are Chapter wise and downloadable in pdf format. In this Chapter we cover the Quiz/Exams about CHEMISTRY First Year Chapter No. 3 “GASES“.

1^st Year CHEMISTRY notes and MCQs are according to latest Paper Pattern of Punjab Boards, All Exercises in Textbooks are solved to ensure the Quality Education to Medical College Students. All MCQs are according to UHS (University of Health Sciences) Lahore approved Syllabus.

Job Seeking Candidates use for CSS (Central Superior Service) , FPSC (Federal Public Service Commission Islamabad) , PPSC (Punjab Public Service Commission) , SPSC(Sindh Federal Public Service Commission) , KPPSC(Khyber-Pakhtunkhwa Public Service Commission) , BPSC ( Balochistan Public Service Commission) , UPSC (Union Public Service Commission) , PCS (Punjab Civil Services Exam) , IBPS (The Institute of Banking Personnel Selection) , UPPSC(UTTAR PRADESH PUBLIC SERVICE COMMISSION PRAYAGRAJ ) ,

In India IAS exam (officially known as the Civil Services Examination) is organized and conducted by the Union Public Service Commission (UPSC)

These CHEMISTRY 1^ST YEAR MCQs are best for different departments like Railway, Banking , Education (Schools and Colleges),Electricity(WAPDA) or in any Private Industry.

Explanation and Solution of all past papers in this online Practice Test with Examples leads the Candidates towards Success in Interviews.

Book Name : Chemistry
Chapter No. 03
Chapter Name : Gases
Total MCQ from Text Book : 41
Book Version : 2022
Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade : 11 ( F.Sc. Intermediate)
Total Marks : 41
Total Time :41 minutes

GRADE 11 - CHEMISTRY CHAPTER NO. 3 GASES

1 / 41

If absolute temperature of a gas is doubled and the pressure is reduced to one-half, the volume of the gas will:

remain unchanged

Increase four times

Reduce to 1/4

Be doubled

2 / 41

What will be the pressure of a gas when it expands three times, the gas was at 3 atm, pressure?

9 atm

1 atm

3 atm

6 atm

3 / 41

The solid particles possess:

All

Translational motion

Rotational motion

Vibrational motion

4 / 41

Number of molecules in one dm³ of water is close to :

6.02/22.4 x 1023

55.6 X 6.02 x 1023

12.04/22.4 x 1023

18/22.4 x 1023

5 / 41

How should the conditions be changed to prevent the volume of a given gas from, expanding when its mass is increased?

Temperature is increased and pressure is lowered

Temperature and pressure both are lowered

Temperature and pressure both are increased

Temperature is lowered and pressure is increased

6 / 41

SI unit of van der Waal's constant 'b' is:

Nm+2

m3 mol-1

Nm+4 mol-2

dm3 mol-

7 / 41

The rate of diffusion of a gas of molar mass 32 as compared of H₂ will be

2-Jan

6-Jan

4-Jan

8 / 41

Gases deviate from ideal behaviour at high pressure. Which of the following is correct for non-ideality?

At high pressure, the collisions between the gas molecules are increased manifold

At high pressure, the volume oche gas becomes insignificant

At high pressure, the gas molecules move in one direction only

At high pressure, the intermolecular attractions become significant

9 / 41

P₁V₁ = P₂ V₂ represents:

Dalton's law

Charle's law

Graham's law

Boyle's law

10 / 41

The order of the rate of diffusion of gases NH₃, SO₂, Cl₂and CO₂ is:

Cl2 > SO2 > CO2 NH3 >

NH3 > CO2 > SO2 > Cl2

NH3 > SO2 > Cl2 > CO2

NH3 > CO2 > Cl2 > SO2

11 / 41

Which of the following is correct?

1 atm = 1 mm Hg = 760 torr

1 atm = 1 mm Hg = 1 torr

760 atm = 760 mm Hg = 1 torr

1 atm = 760 mm Hg = 760 torr

12 / 41

Kinetic molecular theory was put forward by

Bernouli

Maxwell

Boltzmann

Clausius

13 / 41

Which of the following will have the same number of molecules at STP?

11.2dm3 of O2 and 32 g of O2

44 g of CO2 and 11.2dm3 of CO

28 g of N2 and 5.6 dm3 of O2

280 cm3 of CO2 and 280 cm3 of N3O

14 / 41

SI unit of van der Waal's constant 'a' is:

Nm2 mol-2

atm dm6 mol-2

Nm+4 mol-2

m3 mol-1

15 / 41

In sea, a sea diver after every 100 feet depth experiences a pressure of approximately:

1 atm

4 atm

3 atm

2 atm

16 / 41

Which of the following shows maximum ideal behaviour under same conditions?

NH3

HCl

Hydrogen

17 / 41

The rate of diffusion is higher in

N2

Oxygen

CO2

NH3

18 / 41

A real gas obeying van der waal's equation will resemble ideal gas, if

a is large and b is small

a is small and b is large

Both a and b are small

Both a and b are lage

19 / 41

Plasma is difficult to maintain at:

Low magnetic field

High temperature

Low temperture

high magnetic field

20 / 41

Absolute zero is :

-273.16 K

-273.16°F

-273.16°C

All

21 / 41

-40°C is equal to:

273 K

212 ° F

-40 K

-40° F

22 / 41

Equal masses of methane and oxygen are mixed in an empty s container at 25°C. The fraction of total pressure exerted by oxygen is:

16/17

3-Jan

9-Jan

9-Aug

23 / 41

If we decrease temperature of a gas two times then volume of gas will:

Decrease two times

Increase two times

Decrease four times

Increase four times

24 / 41

1 Pascal is equal to:

760 torr

101.325 Nm-2

101325 Nm-2

1 Nm-2

25 / 41

SI unit of R is:

0.0821 dm3 am K-1 mol-

62.4 dm3 torr K-1 mol-

8.3143 Nm K-1 mol-1

62400cm3torr K-1 mol-1

26 / 41

Which of the following gas has maximun rate of diffusion?

NH3

H2

SO2

CO2

27 / 41

It is a brown coloured gas:

NO2

H2

N2

O2

28 / 41

Pressure remaining constant at which temperature the volume of a gas will become twice of what it is at 0°C:

273°C

546° C

546°C

200°C

29 / 41

The least value of van der Waal's constant is of:

Oxygen

Nitrogen

Hydrogen

Chlorine

30 / 41

E_k is equal to:

3RT/2NA

RT/2NA

2RT/3NA

NA

31 / 41

Critical temperature of CO2 is:

42.31° C

13.14° C

31.142° C

1.3142° C

32 / 41

Critical temperature of NH3 is:

132.44° C

1.11° C

13.24° C

31.142° C

33 / 41

1 dm³ of H₂ has number of molecules:

2.68x1021

6.02x1023

2.68x1022

6.02x1022

34 / 41

The sum of mole fraction of gases in a mixture of gases is

May be less or more than 1

Always less than 1

Always more than 1

Always 1

35 / 41

The molar volume of CO₂ is maximum at:

0°C and 2 atm

127°C and 1 atm

STP

273 °C and 2 atm

36 / 41

Boyle's law is represented as:

T ∝ 1/P

V ∝ T

V ∝ P

V ∝ 1/P

37 / 41

The density of a as is 6 times than that of gas 'y'. If molecular mass of X is M, then molecular mass of Y is:

M/6

6 M

2 M

38 / 41

This gas cannot be liquified by Linde's method:

CO2

CH4

N2

39 / 41

The difference of partial pressure of oxygen in air and lungs is:

43torr

23 torr

33 torr

53 torr

40 / 41

The deviation of a gas from ideal behaviour is maximum at:

-10 C and 2.0 atm

-10 C and 5.0 atm

100 C and 2.0 atm

0 C and 2.0 atm

41 / 41

Values of van der Waal's constant 'h' in correct order is:

SO2 > CO2 > O2 > H2

O2 > H2 > CO2 > SO2

CO2 > SO2 > O2 > H2

H2 > O2 > CO2 > SO2

Your score is

The average score is 37%

Dear Student If you feel any error in any MCQ then contact us on this Email : 786times.com@gmail.com (administrator) OR Write in Comments….

Features:

*Simple and easiest way to display MCQs.
*on refresh website page,each question and Answer shuffle in MCQs.
*Time Limit is display for each test.
*no login and password required for test.
*each query entertained online via email or WhatsApp.
*score card Display.
*correct answer display at end of each question(if you wrong answered).
*Complete list of Question numbers in cells(blocks) e.g. 1, 2 , 3 ….
*Red cells show your wrong answers.
*Green cells shows correct Answers.
*Your obtained RESULT Percentage show after each Questions.
*Use your computer LAB & Internet to increase ability of STUDENTS.