Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally____?

A: metallic substances

B: ionic substances

C: molecular solids

D: covalent network solids

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metallic substances

What is the body temperature of a normal man?

A: 37.0 °C

B: 81.1 °C

C: 98.6 °C

D: 21.7 °C

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37.0 °C

Who invented “Aspirin” in 1897?

A: Newton

B: Barnard

C: Felix Hoffmann

D: McLeod

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Felix Hoffmann

Who discovered the Polio Vaccine?

A: Jaber Ibn Hayan

B: Jonas Salk

C: Selman Waksman

D: None of these

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Jonas Salk

The distance between the optical centre of a convex lens and its principal focus is called its__?

A: Radius of Curvature

B: Focal Length

C: Power

D: Magnification

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Focal Length

What is the Chemical formula of Zinc Hydroxide ____ ?

A: ZNO2

B: Zn(OH)2

C: Zn2(OH)3

D: ZnOH

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Zn(OH)2

A chronometer meter measures_____?

A: Time

B: Sound waves

C: Color contrast

D: Water waves

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Time

Another name of vitamin C is_____?

A: Acitic Acid

B: Ascorbic Acid

C: Citric Acid

D: Lysozyme

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Ascorbic Acid

Steering of a car involves?

A: Two forces acting in the same direction

B: A single force

C: Two forces acting along different lines and in opposite direction.

D: A pair of forces acting along the same line and in opposite direction

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A pair of forces acting along the same line and in opposite direction

The movement of any solvent across a semipermeable membrane is called_____?

A: Cataphoresis

B: Osmosis

C: Electrolysis

D: Electrophoresis

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Osmosis

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