Chemistry MCQs Ch No.5 Atomic Structure Online MDCAT

1st Year Chemistry MCQs Chapter No.5 Atomic Structure, 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.

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Book Name :  Chemistry
Chapter No. 05
Chapter Name : Atomic Structure 
Total MCQ from Text Book :  58
Book Version  :

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 : 58
Total Time :   58 minutes



1 / 58

The positive particles obtained in-the discharge tube from Hydrogen gas was named proton by:

2 / 58

The element which has maximum number of unpaired electrons:

3 / 58

Which is spherically symmetrical orbital?

4 / 58

Spin quantum number explains:

5 / 58

Each d-orbital has four lobes except:

6 / 58

Which of the following equation explains wave-particle duality?

7 / 58

Atoms with higher atomic numbers produce X-rays of:

8 / 58

Line spectrum is characteristic of:

9 / 58

Which of the following set of quantum number is allowed?

10 / 58

Which of the following quantum number is not obtained from Schrondinger wave equation?

11 / 58

Bohr's theory does not apply on:

12 / 58

[Ar]4s l is the electronic configuration of:

13 / 58

When 6d is complete the entering electron goes to:

14 / 58

Maximum number of electrons in a subshell is given by:

15 / 58

Total number of spectral regions in a spectrum of white light is:

16 / 58

e/m of positive rays is maximum for:

17 / 58

The negative charge on cathode rays was proved by:

18 / 58

The energy associated with an electron revolving in lst orbit of H-atom:

19 / 58

The radius of second orbit of hydrogen atom is:

20 / 58

The radius of first orbit of Hydrogen atom is:

21 / 58

A node is the surface where the probability of finding an electron is:

22 / 58

Orbitals having same energy are known as:

23 / 58

Heisenberg's uncertainty principle's equation is:

24 / 58

2p orbital has values of quantum number:

25 / 58

Electronic configuration of Cr is [Ar]

26 / 58

Orientations in a subshell are shown by quantum number:

27 / 58

We can distinguish between two electrons of the same orbital by the quantum no. which is represented by:

28 / 58

What is the n + / value of 3d?

29 / 58

In Balmer series, limiting line lies in:

30 / 58

Maximum frequency X-ray would be emitted from:

31 / 58

Radius of third shell of H-atom is:

32 / 58

de-Broglie wavelength associated with a-particle of mass 10-6kg moving with a velocity of 10 m/s is:

33 / 58

If uncertainty in position of electron is zero, the uncertainty in its momentum would be:

34 / 58

Which of the following has minimum e/m value for anode rays?

35 / 58

When tin stone is placed in the path of cathode rays it glows:

36 / 58

In absence of magnetic field, the orbitals of f-subsliell are:

37 / 58

It has same number of electrons as an alpha particle:

38 / 58

Which of the following particles would on losing an electron has its outermost p-orbital as half filled?

39 / 58

How many times of mass of neutron is greater than mass of electron ?

40 / 58

The value of e/m in coulombs kg-1

41 / 58

Neutron was discovered by:

42 / 58

Proton was discovered by

43 / 58

Mass of electron in kg is:

44 / 58

6529Cu + 10n ? 6629Cu + Y What is y ?

45 / 58

147N + 10n ? X + 42He What is x ?

46 / 58

10 n ? 1+1p +01 What is x ?

47 / 58

42 He + 94 Be ? 126 C + X What is x ?

48 / 58

The process in which alpha particles are bombarded on Be is known as:

49 / 58

When 6d orbital is complete, the entering electron goes into:

50 / 58

Orbitals having same energy are called:

51 / 58

Quantum number value for 2p orbitals are:

52 / 58

In the ground state of an atom, the electron is present:

53 / 58

Splitting of spectral lines when atoms are subjected to strong electric field is called:

54 / 58

Bohr model of atom is contradicted by:

55 / 58

Rutherford's model of atom failed because :

56 / 58

The wave number of the light emitted by a certain source is 2x106m-1. The wavelength of this light will be:

57 / 58

The velocity of photon is :

58 / 58

The nature of the positive rays depend on:

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