MDCAT Chemistry Chapter 3 MCQ Test With Answer for (Atomic Structure)

In Chemistry, chapter 3 holds equal significance as the other chapters. The candidates planning to appear in the MDCAT should follow the syllabus. After completing the preparation, the students should solve the MCQs to analyze their preparation level and work on the weak areas. The online test is provided to facilitate the students so they can access them easily without wasting any time. The students who intend to appear in the MDCAT must take the maximum online test. It helps the students to perform well in the actual time, and in this way, they also learn about time management, which is a crucial part to consider. So save time and solve the online test at least once for better preparation and then appear in the MDCAT. To get updates about the MDCAT test, stay connected with us.

MCQ's Test For MDCAT Chemistry Chapter 3 Atomic Structure Online Test

Try The MCQ's Test For MDCAT Chemistry Chapter 3 Atomic Structure Online Test

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MDCAT Chemistry Chapter 3 Atomic Structure Online Test

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Question # 1

Which one of the following statements is wrong for gases?

Question # 2

Which is not true in case of an ideal gas?

Question # 3

At higher temperature isotherm of Boyle's law moves away from both axis, is due to increase in:

Question # 4

Which of the following is the correct equation to calculate relative molecular mass of a gas

Question # 5

The root mean square velocity of a gas is doubled when the temperature is

Question # 6

If a gas expands at constant temperature

Question # 7

The volume of gas depends upon the------- moleules

Question # 8

At constant volume, for a fixed number of moles of a gas the pressure of the gas increases with size of temperature due to

Question # 9

The relationship between density and molar mass of a gas is

Question # 10

According to the general gas equation, density of an ideal gas depends upon

Question # 11

Which type of motion is exhibited by gases?

Question # 12

Charles's law is only obeyed at which temperature scale

Question # 13

The actual volume of gas molecules is considered negligible at following pressures

Question # 14

Under which condition CO has the maximum molar volume

Question # 15

The density of neon will be highest at

Question # 16

The pressure exerted by gas molecules is due to their

Question # 17

The motion imparted to the gas molecules by gravity is

Question # 18

Density of a gas increases by

Question # 19

For an ideal gas, number of mole in terms of its pressure P, temperature T and gas constant is

Question # 20

Helium atom is two times heavier than a hydrogen molecule. At 298 K, the average kinetic energy of a helium atom is

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Prepare Complete Set Wise MDCAT Chemistry Chapter 3 Atomic Structure Online Test MCQs Online With Answers


In this topic,Student should be able to:

a) Identify and describe the proton, neutron and electron in terms of their relative charges and relative masses.

b) Discuss the behaviour of beams of protons, neutrons and electrons in electric fields.

c) Calculate the distribution of mass and charges within an atom from the given data.

d) Deduce the number of protons, neutrons and electrons present in both atoms and ions for a given proton and nucleon numbers/charge.

e) i) Describe the contribution of protons and neutrons to atomic nuclei in terms of proton number and nucleon number. ii) Distinguish between isotopes on the basis of different numbers of neutrons present.

f) Describe the number and relative energies of the s, p and d orbitals for the principal quantum numbers 1, 2 and 3 and also the 4s and 4p orbitals.

g) Describe the shapes of s, p and d-orbitals.

h) State the electronic configuration of atoms and ions given, the proton number/charge for period 1, 2, 3 and 4 (hydrogen to Krypton).

Explain:

i) Ionization energy.
ii) The factors influencing the ionization energies of elements.
iii) The trends in ionization energies across a Period and down a Group of the Periodic Table.

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Sr.# Question Answer
1 If volume of an ideal gas at 0°C 536cm3, what is volume at 1°C
A. 373 cm3
B. 646 cm3
C. Becomes 0cm3
D. 746 cm3
2 Which one of the following statements is wrong for gases?
A. gases do not have a definite shape and volume
B. volume of the gas is equal to volume of container confining the gas
C. confirmed gas exerts uniform pressure on the walls of its container in which it is enclosed
D.
mass of gas cannot be determined by weighing a container in which it is enclosed
3 The pressure of gas at constant temperature in a container of 2dm3 is 10 atm what will be its final pressure if it is connected with 10 dm3 container
A. 2 atm
B. 1.6 atm
C. 5 atm
D. I atm
4 The root mean square velocity of a gas is doubled when the temperature is
A. reduced to half.
B. reduced to one-fourth
C. increased four times
D. inereased two times
5 At higher temperature isotherm of Boyle's law moves away from both axis, is due to increase in
A. pressure
B. No. of moles
C. Volume
D. all of these
6 Which is not true in case of an ideal gas?
A. It cannot be converted into a liquid
B. There is no interaction between the molecules
C. All molecules of the gas move with same speed
D. At a given temperature P'V is proportional to the amount of the gas
7 Charles's law is only obeyed at which temperature scale
A. Celsius
B. Kelvin
C. Fahrenheit
D. both A&B
8 The number of molecules in 22.4 dm3 of gas at 0°C and 1 atm are
A. 6.02×10(23)
B. 6.02× 10(25)
C. 6.02×10(22)
D. 6.02×10(21)
9 At constant volume, for a fixed number of moles of a gas the pressure of the gas increases with size of temperature due to
A. increase in average molecular speed
B. increase in number of moles
C. increase in molecular attraction
D. decrease in the distance between the molecules
10 Acording to the kinetic theory of gases
A. The pressure exerted by a gas is proportional to mean square velocity of the molecules
B. The pressure exerted by the gas is proportional to the root mean square velocity of the molecules
C. The root mean square velocity is inversely proportional to the temperature
D. The mean translational KE of the molecule is directly proportional to the absolute temperature
11 At higher temperature what is true for gases
A. pressure is decreased
B. volume is decreased
C. number of moles are decreased
D. KE is increased
12 The mono atomic gases are
A. Halogens
B. Noble gases
C. 6h group elements
D. Nitrogen and oxygen
13 If volume of an ideal gas at 0C° 536cm3, what is volume at 1°C
A. 373 cm3
B. 646 cm3
C. Becomes 0cm3
D. 746 cm3
14 The relationship between density and molar mass of a gas is
A. Directly proportional
B. Inversly proportional
C. Straight line
D. Stoichiometric
15 The motion imparted to the gas molecules by gravity is
A. very small
B. very large
C. negligible
D. appreciable
16 .The number of moles in 2.24 dm3 of H2 gas at STP is:
A. 1
B. 0.1
C. 10
D. 0.01
17 Which of the statement is applicable for both ideal and real gases molecules?
A. Have no forces of attraction
B. Collisions between the molecules is elastic
C. Molecules are in random movement
D. The actual volume of gas is negligible as compared to the volume of gas
18 Theoretically, the temperature at which volume of gas become equal to zero is called
A. Boiling point of water
B. Zero absolute
C. Zero Kelvin
D. both B and C
19 If increase in temperature and volume of an ideal gas is two times, then the initial pressure P changes to
A. 4P
B. P
C. 2P
D. 3P
20 If temperature is 73K and volume is 146 cm3 then calculate the value of K=V/T
A. 5
B. 4
C. 3
D. 2

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