Question # 1

Which of the following is an anion.

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F

Cl

S-2

NH3

The component of solution which is relatively large in quantity is

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Solute

Solution

Solvent

None of these

Zince oxide is ............... solid substances.

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Red

White

Yellow

Blue

The temperature at which a liquid's vapour pressure is equal to the external pressure surrounding the liquid is.

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Melting point

Boiling point

Freezing point

Highest temperature.

Which of the following is most excellent solvent.

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Sulphuric acid

Acetic acid

Water

Ammonia

The outer layer of human skin is

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Endodermis

Cortex

Pitch

Epidermis

While writing a chemical formula positive ionis written on.

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Right

Left

Center

All of these

The mineral which help pant in production of Carbohydrates and fat is.

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Nitrogen

Magnesium

Oxygen

Carbon

Negatively charged atom or grop of atoms is called.

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Proton

Electron

Anion

Cation

Nuclear membrane is not found in.

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Plant cell

Animal cell

Bacterial cell

Fungal cell

When water molecule gain a proton it form

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H+

OH-

H3O

H2O

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