Question # 1

Proteins are polymers of.

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Polysaccharide

Oligosaccharids

Amino acid

Nucleic acid

Catalyst used in Haber's process is:

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Ni

Fe

Cu

Zn

Which of the following can be used as a fuel?

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Methanol

Ethanol

Bio-diesel

All of them

Dilute acids react with carbonates to produce the given products except.

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Salt

Water

Hydrogen

Carbon dioxide

A reaction between an acid and base produce.

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Salt and water

Salt and gas

Salt and acid

Salt and bases

In shoe polished, which chemical is used.

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Ethanol

Methanol

Carbon black

Formaldehyde

Which one of the following is not the characteristics of monosaccharide?

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White crystalline solids

Soluble in water

Hydrolysable

Reducing is nature

_______ is the king of chemicals.

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Hydrochloric acid

Nitric Acid

Sulphuric acid

Phosphoric acid

The value of equilibrium constant (Kc) depends only on:

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temperature

Pressure

concentration

density

Which acid is used for etching designs on copper plates?

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H₂SO₄

HNO₃

HCl

CH₃COOH

In the bessemerization process.

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Roasted ore is beated.

Molten matte is removed.

Molten matte is heated

Molten matte is added

Essential components of every living all are.

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Nucleic acids

Enzymes

Lipids

Cell wall

Amino acid are the building blocks of .

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Proteins

Carbohydrates

Vitamins

fats

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