Question # 1

Carbon black is used in the manufacture of.

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Dry cleaning

Shoe polishes.

Fertilizer

None of these

Acetic acid is a weak acid because it.

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Is used in cooking and flavouring food.

Has very low pH

Is not fully ionized

Does not contain any hydrogen ions.

Such reactions which continue in both directions are called.

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Irreversible

Reversible

Nonreactive

Dynamic

Which acid is found in sour milk?

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`Formic acid

Lacitc acid

Citric acid

Butric acid

Which one of the following cannot by hydrolyzed?

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Polysacchrides

Monosacchrides

Oligosacchrides

All of these

Dilute acid react with carbonates the produce product except _________

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Salt

Water

Carbon di oxide

Hydrogen gases

Hypoglycemia result due to:

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high cholesterol level

low cholesterol level

low sugar level in body

high sugar level in body

Depending upon temperature variation, atmosphere ins divided into how many regions?

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1

2

3

4

When acids react with metals which gas is evolved?

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H₂

O₂

Cl₂

N₂

Which of following is not conjugate base.

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S^-2

F^-1

Na⁺

SO₄

Concentration of the copper ore is carried out by:

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Calcinations

Roasting

Forth flotation

Distillation

Alkyl radical is derivative of

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Alkane

Alkene

Alkyne

All

In dry cleaning, which chemical is used.

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Chloroform

Carbon tetachloride

Ecetaldehyde

Ethanol

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