Question # 1

Which one of the following properties of water is responsible for rising of water in plants?

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Specific heat capacity

Viscosity

Excellent solvent action

Capillary action

soap is the sodium salt of long chain.

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Amino acids

Fatty acids

Nucleotides

None of them

Which is not a heavy metal.

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Cadmium

Lead

Zinc

Murcury

Runcid butter has

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Foul smell

Rotten egg smell

Pungent smell

No smell

When the reaction causes to produced it is called.

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Chemical equlibrium state

Static equilibrium

Dynamic equilibriiun

All

Permanent hardness can be removed by using .

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Soda lime

Sodium Zeolite

Quick lime

Lime water

The percentage of potable water on earth is.

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2%

0.2%

0.02%

0.002%

The reduction of alkyl halides takes place in the presence of.

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Zn/HCl

Na/HCl

Mg/HCl

Cu/HCl

Alkenes are produced in large amounts by cracking of.

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Natural gas

Petroleum

Benzene

xylol

The colour of litmus in a strong basic solution become.

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Yellow

Blue

Red

Colourless

The example of heterocyclic compound is.

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Benzene

Hexane

Cyclohexane

Pyridine

Water has a maximum density at .

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10^oC

0^oC

4^oC

100^oC

A salt always

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Contain ions

Contains water of crystallization

Dissolves in water

Forms crystals which conduct electricity

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