Question # 1

The temperature of melting ice in Fahrenheit scale is.

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0 oF

32 oF

100 oF

212 oF

In which type of irrigation water is distribute through netweork of pipes.

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Drip irrigation

Sprinkle irrigation

Karez

Tube well

Chemical formula of Sulphuric Acid.

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HCl

H2SO4

HNO3

CH3COOH

Freezing of a liquid is a

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Chemical change

Chemicla property

Physical change

None of these

There are ............ groups in periodic table.

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2

8

18

32

Strength of solution depends on the amount of.

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Solute

Solvent

Pressure

Temperature

Chemical reaction of oxygen with other substances is called.

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Oxidation

Reduction

Rusting

None of these

The component of solution which is relatively large in quantity is

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Solute

Solution

Solvent

None of these

------------ waves are produced in stretched string.

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Longitudinal wave

Elecromagnetic wave

Transverse wave

None of these

The bulb of the thermometer is filled with.

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Oil

Alcohol

Water

Salt

The first cell formed due to the fusion of reproductive cells in plants in called.

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Embryo

Zygote

Root

Stem

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