Punjab 9th Class Chemistry Model Paper 2 Mcqs Test Online

Chemistry Model Paper 2 Mcqs Test Online Punjab 9th Class

Question 1 of 36

Chemistry

1. Second Period consists of elements?

Question 1 of 36

Question 2 of 36

2. Which radioisotope is used for the diagnosis of goiter in thyroid gland?

Iodine 131

Cobalt 60

Phosphorus 30

Stronitium 90

Question 2 of 36

Question 3 of 36

3. Isotopes of chlorine are:

³⁴Cl, ³⁵Cl

³⁴Cl, ³⁶Cl

³⁵Cl, ³⁷Cl

³⁰Cl, ³²Cl

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Question 4 of 36

4. The particle which penetrates into matter more than others is:

Electron

Neutron

Alpha particle

Proton

Question 4 of 36

Question 5 of 36

5. There are five electrons in the M-Shall of an element. Its atomic no will be:

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Question 6 of 36

6. The maximum number of electrons in L shell?

Question 6 of 36

Question 7 of 36

7. The distance between Nuclei of two carbon atomms is:

140 Pm

154 Pm

115 Pm

110 Pm

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Question 8 of 36

8. “P” sub shell is consists of:

Orbitals 3

Orbitals 4

Orbitals 2

Orbital 1

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Question 9 of 36

9. Which radio isotope is used to diagnose goiter?

Cobalt-60

Sternotium-90

Phosphorus-30

Iodine-131

Question 9 of 36

Question 10 of 36

10. Which one of the following element is the lightest and floats on water.

Magnesium

Lithium

Sodium

Calcium

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Question 11 of 36

11. The Scientist who presented the concept of orbit around the:

Ruther Ford

Bohar

Planks

J.J. Thomson

Question 11 of 36

Question 12 of 36

12. Number of electrons accommodate in valence shell of halogens are:

Question 12 of 36

Question 13 of 36

13. Number of isotopes of carbon are:

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Question 14 of 36

14. How many electrons can K-shell accommodate?

Question 14 of 36

Question 15 of 36

15. Maximum number of electrons accommodate in L-shell are:

Question 15 of 36

Question 16 of 36

16. Who discovered proton?

J.J. Thomas

Bohar

Gold Stein

Ruther ford

Question 16 of 36

Question 17 of 36

17. When U-235 breaks up, it produces:

Electrons

None of these

Protons

Neutrons

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Question 18 of 36

18. Who discovered neutron?

Gold Stein

Chadwick

Rutherford

Bohar

Question 18 of 36

Question 19 of 36

19. Which one is a radioactive isotope?

¹¹C

¹³C

¹²C

¹⁴C

Question 19 of 36

Question 20 of 36

20. Which are of these results in proton discovery?

X-rays

Canal Rays

Alpha-Rays

Cathode Rays

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Question 21 of 36

21. How much electrons can be accommodated in M-Shell:

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Question 22 of 36

22. No. of isotopes of uranium are:

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Question 23 of 36

23. The amount of energy given out when an electron is added to an atom is called:

Electromagnetically

Lattice Energy

Electron Affinity

Ionization

Question 23 of 36

Question 24 of 36

24. The third abundant gas found in the earth’s crust is:

Aluminum

Argon

Nitrogen

Oxygen

Question 24 of 36

Question 25 of 36

25. Which one of the following shell consists of three sub-shell:

Shell-O

Shell-M

Shell-N

Shell-L

Question 25 of 36

Question 26 of 36

26. _________ shell consists of three subshells:

Shell M

Shell N

Shell O

Shell L

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Question 27 of 36

27. Which one is a non polar-molecule?

HNO₃

HCl

H₂O

H₂

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Question 28 of 36

28. Nucleus of an atom consists of:

Electrons and Protons

Electron and Neutrons

Protons and Neutrons

Electrons

Question 28 of 36

Question 29 of 36

29. The Scientist who discovered proton was:

Ruther Ford

Neil Bohr

J.J. Thamson

Gold Stein

Question 29 of 36

Question 30 of 36

30. The total number of sharin electrons in N₂ gas is:

Question 30 of 36

Question 31 of 36

31. The concept of orbit was used by:

J.J. Thamson

Ruther ford

Bohr

Planks

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Question 32 of 36

32. The M-Shell can accommodate mazxium:

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Question 33 of 36

33. Electrons in N-Shell are:

Question 33 of 36

Question 34 of 36

34. Number electrons accommodate in “P” sub shell?

Question 34 of 36

Question 35 of 36

35. The mass of electron is:

9.106 x10⁻²⁸kg

1.672x10⁻²⁴kg

9.106 x10⁻²⁸g

1.672 x10⁻²⁴g

Question 35 of 36

Question 36 of 36

36. “N” shell can accommodate electrons:

Question 36 of 36

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