Question # 1

When glucose and fructose combine they produce

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Starch

Cellulose

Sucrose

None of these

Which base is more corrosive?

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NH₄OH

NaOH

Ca(OH)₂

AL(OH)₂

Sum of PH and POH of a solution is:

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7

14

16

18

The raw materials for the manufacturing of urea are.

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Ammonia

Carbondioxide

Limestone

a & b

Which gas is in involved in ozone depletion?

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Nitrogen

CFC's

Chlorine

All of them

A dynamic equilibrium

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Reaction stops to proceed

Amounts of reactants and products are equal

Rate of forward and reverse reaction are equl

Reaction can no longer be reversed.

Condensed formula of ethane is

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C₃Cl₈

C₂Cl₆

H₃CCH₃

None of these

Which salt is used as a table salt?

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NaCl

Na₂CO₃

Na₂SiO₃

NaCl

The characteristics of reversible reactions are the following except:

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Products never recombine to form reactants.

They never complete

The proced in both ways

They have a double arrow between reactants and products.

A bound formed between two amino acids is:

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Peptide linkage

Covalent bound

Hydrogen bound

Glycosidic linkage

Which gas acts as a glass wall of a green house?

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Oxygen

Carbon dioxides

sulphur dioxide

Hydrogen

Natural source of citric acid is:

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Rancid butter

Fats

Lemon

Sour milk

The reaction between an acid and a base produces.

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Salts and water

Salt and gas

Salt and an acid

Salt and an base

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