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

One dm3 of H2 and O2: has different masses but no. of particles are

Question # 2

The number of molecules in 22.4 dm3 of gas at 0°C and 1 atm are

Question # 3

The pressure exerted by gas molecules is due to their

Question # 4

Acording to the kinetic theory of gases

Question # 5

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

Question # 6

If increase in temperature and volume of an ideal gas is two times, then the initial pressure P changes to

Question # 7

An ideal gas expands according to PV=constant. On expansion, the temperature of gas

Question # 8

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

Question # 9

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

Question # 10

Which of the statement is applicable for both ideal and real gases molecules?

Question # 11

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

Question # 12

If volume of an ideal gas at 0C° 536cm3, what is volume at 1°C

Question # 13

Theoretically, the temperature at which volume of gas become equal to zero is called

Question # 14

Density of a gas increases by

Question # 15

The mono atomic gases are

Question # 16

The molecular speed Crms of gas is

Question # 17

Gas is enclosed in a container of 20cm3 with the moving piston. According to kinetic theory of gases, what is the effect on freely moving molecules of the gas if temperature is increased from 20°C to 100C.

Question # 18

The relationship between density and molar mass of a gas is

Question # 19

If temperature is 73K and volume is 146 cm3 then calculate the value of K=V/T

Question # 20

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

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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 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)
2 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
3 The temperature of a gas is directly proportional to its
A. average translational kinetic energy
B. enthalpy
C. internal energy
D. hydration energy
4 The relationship between density and molar mass of a gas is
A. Directly proportional
B. Inversly proportional
C. Straight line
D. Stoichiometric
5 Which type of motion is exhibited by gases?
A. Vibrational
B. Transitional
C. Rotational
D. All of them
6 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
7 Charles's law is only obeyed at which temperature scale
A. Celsius
B. Kelvin
C. Fahrenheit
D. both A&B
8 The actual volume of gas molecules is considered negligible at following pressures
A. 2atm
B. 4atm
C. 6 atm
D. 8 atm
9 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
10 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

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