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Irfan • 5.26K Points
Tutor III

1) The chemical name of quartz is

(A) Calcium oxide
(B) Sodium silicate
(C) Calcium phosphate
(D) Sodium phosphate
Correct Answer - Option (B)

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Irfan • 5.26K Points
Tutor III

2) A moving bullet hits a solid target resting on a frictionless surface and gets embedded in it. What is conserved in this process?

(A) Neither momentum nor kinetic energy
(B) Both momentum and kinetic energy
(C) Momentum alone
(D) Kinetic energy alone
Correct Answer - Option (C)

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

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Irfan • 5.26K Points
Tutor III

3) When zinc reacts with hydrochloric acid, the gas evolved is

(A) Chlorine
(B) Oxygen
(C) Hydrogen
(D) None of these
Correct Answer - Option (C)

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Irfan • 5.26K Points
Tutor III

5) Why does milk curdle?

(A) Due to fermentation of lactose
(B) Due to fungus growth
(C) Due to reaction of microbes
(D) Due to overheating
Correct Answer - Option (A)

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Irfan • 5.26K Points
Tutor III

6) In an electric bulb, a little nitrogen or argon is introduced at low pressure to

(A) cool the hot filament
(B) increase brightness of the filament
(C) withstand atmospheric pressure
(D) prevent evaporation of the filament
Correct Answer - Option (D)

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Irfan • 5.26K Points
Tutor III

7) Which of the following diseases is not caused by virus?

(A) Marek's disease
(B) Babesiosis
(C) Blue tongue
(D) Ranikhet (New Castle) disease
Correct Answer - Option (B)

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

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Irfan • 5.26K Points
Tutor III

8) A transformer is used to

(A) Increase DC voltage
(B) Convert DC into AC
(C) Decrease DC voltage
(D) Increase or decrease AC voltage
Correct Answer - Option (D)

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Irfan • 5.26K Points
Tutor III

10) Consider the following statements.
1.Unit of pressure is newton/metre2.
2.Unit of torque is newton/metre.
3.Unit of plane angle is radian. Which of the above statement(s) is/are correct?

(A) 1, 2 and 3
(B) 1 and 3
(C) 1 and 2
(D) 2 and 3
Correct Answer - Option (B)

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