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Learn UPSC MCQs with answers [Page 1 of Department 86]

A

Akash Lawaniya • 9.48K Points
Tutor III

1) Improve the sentence if needed.
(His powerful desire) brought about his downfall.

(A) His intense desire
(B) His desire for power
(C) His fatal desire
(D) No improvement
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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A

Akash Lawaniya • 9.48K Points
Tutor III

2) Fill in the blank with suitable word: 
My mother asked me when . . . . . . have a glass of milk.

(A) I will
(B) I shall
(C) I would
(D) Would I
Correct Answer - Option (C)

Explanation :
My mother asked me when I would have a glass of milk.

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C

Chandan Das • 6.78K Points
Tutor III

3) What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time?

(A) Bus control
(B) Interrupts
(C) Bus arbitration
(D) Status
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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G

Geetam • 5.95K Points
Tutor III

4) Who developed the model of atomic structure ?

(A) Bohr and Rutherford
(B) Volta
(C) Alfred Nobel
(D) Faraday
Correct Answer - Option (A)

No Explanation found. Add Explanation and get +2 points.

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G

Geetam • 5.95K Points
Tutor III

5) Which among the following is a covalent compound ?

(A) Calcium chloride
(B) Magnesium fluoride
(C) Sodium chloride
(D) Carbon tetrachloride
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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G

Geetam • 5.95K Points
Tutor III

6) Atomic number of an atom gives the number of which of the following ?

(A) Electrons
(B) Protons
(C) Neutrons
(D) Neutrons and protons
Correct Answer - Option (B)

No Explanation found. Add Explanation and get +2 points.

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G

Geetam • 5.95K Points
Tutor III

7) The chemical bahaviour of an atom depends upon

(A) The number of protons in its nucleus
(B) The number of neutrons in the nucleus
(C) The number of electrons orbiting around the nucleus
(D) The number of nucleons in the nucleus
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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G

Geetam • 5.95K Points
Tutor III

9) Which of the following metals can displace copper from copper sulphate solution ?

(A) Platinum
(B) Mercury
(C) Iron
(D) Gold
Correct Answer - Option (C)

Explanation :
Iron metal is more reactive than copper. Therefore, it can displace copper from copper sulphate (CuSO4) solution. Cu is less reactive than iron, therefore, cannot replace iron from iron sulphate (FeSO4).

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