Question # 1

Water become hard because of:

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Ca+2

Mg+2

SO-24

all of these

The major components of Atmosphere are:

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Carbon and Nitrogen

Nitrogen and Oxygen

Oxygen and Chlorine

None of these

The energy provided by carbohydrates in per gram.

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17 KJ

21 KJ

35 KJ

10 KJ

Water dissolves Non-ionic compounds by:

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Ion-Ion forces

Dipole forces

Dipole - Dipole forces

Hydrogen Bonding

Night blindness is because of deficiency of:

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Vitamin A

Protein

Vitamin C

Vitamin D

Which is the main component of natrual gas.

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Methane

Ethane

Propane

Charcoal

Which one of the following cannot by hydrolyzed?

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Polysacchrides

Monosacchrides

Oligosacchrides

All of these

Water which produces good lather with soap is called.

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Soft water

Hard water

Heavy water

All of them

A saturated solution of sodium chloride is called.

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Brine

Suspension

Colloidal

None of these

Imperial chemical industries was established in.

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1942

1944

1950

1990

Which one of the following is a synthetic fibre?

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Cotton

Wool

nylon

silk

Organic compounds contain:

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ionic bond

Covalent bond

Metallic bond

Co-ordinate covalent

Which is not a heavy metal.

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Cadmium

Lead

Zinc

Murcury

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