Question # 1

The region of earth capable of supporting life is

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Hydrosphere

Lithosphere

Biosphere

Atmosphere

What is the weight of 10 litres of CO₂at 27°C and 2 atm?

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89.3 g

36.1 g

125 g

127 g

When we dissolve 15.8 g of KMnO4 in 1000g of H20. The solution is

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, 0.1 M

0.1 M

0.2 M

Aspartic acid is a (an)

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Monoamino dicarboxylic acid

Diamino Monocarboxylic acid

Aromatic amino acid

Imino acid

The development of disagreeable odour in fats or oil is called

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fragrance

perfume

rancidity

smell

The products of electrolysis of which of the followings are known

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Fused electrolyte

Aqueous solution of eleetrolyte

Solid electrolyte

Solid metal

Surface tension is measured by

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viscometer

barometer

stalagmometer

manometer

Alkanes do not show geometrical isomerism due to

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Hyperconjugation

Resonance

Rotation around single hond

Restricted rotation around doubled bond

Which method is used to prepare carboxylic acid?

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Hydrolysis of AI₄C₃

Hydrolysis of CaC₂

Hydrolysis of alkyl nitrites

Hydrolysis of alkenes

Proteins are the polymers of amino acids having

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NH₂ group only

OH^-group only

NH₂andOH^- group

NH₂and COOH group

Which of the following solids does not have a covalent bond?

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Silica

Copper

Diamond

Graphite

Acetone reacts with HCN to form a cyanohydrin. It is an example of

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

Which polymerization is free radical machanism based

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Addition

Condensation

Both a and b

None

Na₂O is

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Acidic

Basic

Neutral

Amphoteric

A combination of glucose and fructose is called:

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Sucrose

Table sugar

a and b

Lactose

Which of the following has the maximum number of unpaired d-electrons?

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Zn

Fe²⁺

Ni³⁺

Cu⁺

The reagent which forms crystalline osazone derivative when treated with glucose is

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Fehling solution

Phenyl hydrazine

Benedict solution

Hydroxyl amine

The cell which generates electricity as a result of spontaneous oxidation-reduction reaction is called

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Electrolytic cell

Nelson's cell

Galvanic cell

Down's cell

The acid present in the stings of bees and wasps in

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Acetic acid

Formic acid

Formalin

Formaldehyde

Gradation in properties in the periods of periodic tables are due to change in

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Atomic weight

The number of electrons

Number of protons

Electronic configuration

Which one of the following step is not involved in determination of empirical formula

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Determination % of each element

Determination of gram atom of each element

Determination of isotopes of each element

Determination of atomic ratio of element

Vegetable oils are

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Glycerides of saturated fatty acids

Essential oils obtained from plants

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