Question # 1

Number of elements in short period is.

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2

8

16

32

The basic particle of an element is called.

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Compound

Mixture

Atom

None of these

Which fo these is NOT a genetic variation.

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Attached earlobes

Blood group

Eye colour

Mark of cut on skin

The relation R = V/I is discovered by a

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American scientist

German scientist

British Scientis

Russian scientist

Speed of light through glass is about.

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300000 km /s

250000 km/s

225000 km /s

200000 km/s

The formula of find the magnitude of current is.

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I = Q/t

I = QV

I = CV

I = C/Q

Unit of Pressure is

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Joule

Newton

Nm2

Nm-2

Baking soda, calcium carbonate, glycerin, fluorides are usually used for making.

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Soaps

Detergents

Tooth paste

Banaspati ghee

1 kPa=

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1000 Pa

100 Pa

1056 Pa

800 Pa

In meiosis, the nucleus of a cel dividies.

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One time

Three times

Four times

Five times

An atom containing two electrons.

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Be

Li

H

He

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