Chemistry Solved MCQs From Past Papers Unit 3

Chemistry solved MCQs from past papers of entry tests. MDCAT unit-wise solved MCQs Fsc chemistry part 1 with answer keys. Download in pdf or read online. Unit 3 of the MDCAT Chemistry Solved MCQs Past Papers. MDCAT FSC chemistry part 1 MCQs solved by unit with answer keys. You can read it online or download it as a PDF.

This is a list of solved MCQs from unit 3 of Fsc chemistry unit 3 of the MDCAT.
Part 1 of Unit 3: Solved MCQs from past MDCAT Chemistry tests Unit 3 is the first part of MDCAT solved past papers broken down by unit. In this section, we have the answers to the MCQs from the MDCAT Chemistry Solved MCQs Past Papers Unit 3 that have already been answered. So, you can either read the material online or download it as a PDF. We are in the process of updating the information.

MDCAT Chemistry Solved MCQs Unit Wise

Chemistry solved MCQs for MDCAT| Chemistry solved MCQs of Past Papers| MDCAT Chemistry Solved MCQs for Entry Test Preparation|

1. The constant factor in Charle’s law is: (Gujranwala Board, 2008)
(A) Volume
(B) Temperature
(C) Pressure
(D) all of these
2. The S.I. unit of pressure is expressed in (Rawalpindi Board, 2013: Multan Board, 2013.2018: D.G. Khan Board. 2017)
(A) Mm Hg
(B) Nm-2
(C) Nm -3
(D) Nm-1
3. An ideal gas has volume I dm3 at 303 K. Keeping pressure constant, at which Kelvin its volume becomes 2 dm3 ECAT 2016
(A) 240
(B) 303
(C) 330
(D) 606
4. The commonly used unit of pressure by meteorologists is (Azad Kashmir Board, 2017)
(A) Pascal
(B) millibar
(C) pound inch-2
(D) atm
5. SI unit of pressure is: (Rawalpindi Board, 2009, Lahore Board, 2014)
(A) Pound inch-2
(B) Nm-2
(C) mmHg
(D) torr

1st-Year Chemistry MCQs Unit-3:

6. Which of the following is the correct equation to calculate the relative molecular mass of the gas?
(A) M = mRTNP
(B) M=mRT/VP
(C) M=PV/mRT
(D) M=PV/nRT


7. One mole of any gas at standard temperature and pressure (STP) occupies a volume of
(A) 23.414 dm3
(B) 20414 dm3
(C) 22.414 dm3
(D) 22.414 cm3
8. Partial pressure of 02 in lungs (in torr) is: ‘(Gujranwala Board. 2008)
(A) 760
(B) 159
(C) 150
(D) 116
9. partial pressure Of oxygen in human lungs in the ton is: (Gujranwala Board. 2011: D.G. Khan Board. 2014: Faisalabad Board. 2015: Lahore Board. 2017.2018)
(A) 116
(B) 760
(C) 161
(D) 159
10. the partial pressure of oxygen in the air is: (D.G. Khan Board. 2014: Sargodha Board. 2017)
(A) 157
(B) 159 torr
(C) 156 ton
(D) 158 torr
11. Absolute zero is equal to (Lahore Board, 2007)
(A) 273K
(B) 2730C
(C) -273C
(C) 0C°
12. Formula used for the conversion of F° into C° is (Rawalpindi Board. 2014)
(A) F=9/5(C) + 32)
(B) C=5/9 (F+ 32)
(C) F=5/9 (C) + 32)
(D) C= 9/5 (F-32)
13. The pair of gases which does not obey Dalton’s law of partial pressure under normal conditions is (Faisalabad Board, 2016)
(D) He and Ne
(B) H2 and He
(A) H2 and 02
(C) NH3 and HCI

11th Chemistry MCQs For MDCAT Prep:

14. Feeling uncomfortable breathing in un-pressurized cabins is due to (MCAT, 2017)
(A) High pressure of C02
(B) Low pressure of 02
(C) Fatigue
(D) Low pressure of C02
15. Liquid in a container has 700C, what will be in Kelvin scale? MCAT 2018
(A) 283 K
(B) 300 K
(C) 343 K
(D ) 350K
16. Mass of 22.4 dm3 of N2 at STP is?
(A) 2.8 g
(B) 1.4 g
(C) 14 g
(D) 28g
17. Escape out of gas molecules one by one through a tiny hole is: (Lahore Board, 2014).
(A) All of these
(B) Osmosis
(C) Effusion
(D) Diffusion
18. The spreading of fragrance or scent in the air is due to (Rawalpindi Board. 2011: Sahiwal Board, 2015.2018)
(A) Density
(B) Osmosis
(C) Diffusion
(D) Effusion
19. Which gas will diffuse more rapidly: (Lahore Board. 2009: Sahiwal Board, 2017)
(A) C02
(B) NH3
20. Which gas will diffuse more rapidly among the following? (D.G. Khan Board. 2010)
(A) CO
(B) N2
(C) H2
(D) NH3

Chapter-3 Chemistry MCQs With Solution:

21. The number of carbon atoms in 22 g of C02 is (Lahore Board, 2015)
(A) 3.01 x IO23
(B) 602* 1023
(C) 3.01 x 1022
(D) 6.02*1022


22. If “a” and “b” are zero for certain gas then gas is Lahore Board. 2014)
(A) 6.02*1022
(B) Ideal
(C) Real (C) Non – ideal
(D) May any diatomic gas
23. To calculate the pressure of the volume of a real gas under non-ideal conditions, an alternative kinetic equation has been developed. This is known as:
(B) Arrhenius equation
(C) Celsius Clav»eyron equation
(D) Vander Wall’s eq.
(A) General gas equation
24. Feeling uncomfortable breathing in un-pressurized cabins is due to (Bahawalpur Board, 2015)
a. high pressure of C02
b. low pressure of 02
c. fatigue
d. low pressure of C02
25. The sum of mole fraction of gases in a mixture Of gases is (Faisalabad Board. 2016)
a. always less than I
b. may be less or more than I
c. always 1
d. always more than I
26. The highest temperature a substance can exist as……… is called its critical temperature. MCAT 2008
a. Liquid
b. Gas
c. Isotope
d. Solid

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