Question # 1

The percentage of protein in dry weight of cell.

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20%

40%

50%

70%

The water which produces good lather with soap is called:

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soft water

hard water

heavy water

typical water

Night blindness is because of deficiency of:

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Vitamin A

Protein

Vitamin C

Vitamin D

Traces of acetylene are present in coal gas about.

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0.06 %

0.08%

1.1%

90%

Dextrose is a crystallized:

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sucrose

lactose

glucose

fructose

Substitution reaction is the characteristics of.

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Alkanes

Alkenes

Alkynes

None of these

The water of crystallization is responsible for the.

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Melting points of crystals

Boiling points of crystals

Shapes of crystals

Transition point of crystals

Which type of reactions do not go to completion?

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Irreversible reaction

Reversible reactions

Addition reactions

Decomposition reactions

A conjugate acid is a specie formed by accepting a.

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Proton

Electron pair

Neutron

Electron

Potassium ferrocyanide salt is.

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Normal

complex

Basic

Acidic

All acids turn blue litmus.

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Red

Blue

Pinck

White

Acid rain damages the building it is due to reaction on.

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Calcium sulphate

Calcium nitrate

Calcium carbonate

Calcium oxilat

Which one gas is liberated when alkalies react with ammonium salts?

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O₂

CO₂

H₂

NH3

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