Question # 1

Which is property of CO?

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Soluble in water

Insoluble in water

No toxic

Pole coloured

The forces of attraction between ions and water molecules are known as

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dipole-dipole forces

London forces

dipole- induced dipole forces

ion-dipole forces

The conc.of dissolved molecular oxygen in water which act as the most important oxidizing agent ranges from:

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2ppm- 6ppm

4ppm--8ppm

2ppm--- 4ppm

2ppm --3ppm

The highest temperature in which a substance can exist as a liquid is called its

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Absolute temperature

Critical temperature

Maximum temperature

Body temperature

The process of effusion is best understood by law

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Grahams

Boyle s

Charles s

Avogadro s

Whenever a reaction is endothermic, then it means that

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Heat is transferred system to the surrounding

Heat is transferred from surrounding to the system

Heat content of the products is less than that of reactants

Heat content of the reactants is greater than the products

One statement of isomorphism is incorrect

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they have different chemical properties

they have same physical properties

they have same atomic ratio

they have definite geometric shape

Which of the following is BLOOD iron carrier

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Haemoglobin

Albumin

Transferrin

Globulin

Vegetable oil are

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unsaturated fatty acids

glycerides of unsaturated fatty acids

glycerides of saturated fatty acids

essential oil obtained from plants

H3O+ can't accept a Ip because

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it has positive charge

The central atom is not electron deficient

The shell of oxygen has reached its limit

it already has a coordinate bond

DDT is a:

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Fungicide

Insecticide

Herbicide

All

The heat energy change during a chemical reaction at constant pressure and at a given temperature is called

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Change in internal energy

Enthaply change

Temperature change

Work done by the system

Which of the following statements is correct?

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Phenol is less acidic than ethyl alcohol

Phenol is more acidic than ethanol

Phenol is more acidic than carbonic acid

Phenol is more acidic than CH₃COOH

Misch mental is

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An alloy of Aluminium

A mixture of chromium and lead chromate

An alloy of lanthanoid metals

An alloy of copper

The color of Cr³⁺ion is

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Violet

Blue

Pink

Green

Hybridzation explain the --------- of orbitals

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Type of bonding

Shapes

Shape and type of bonding

None of above

Water shows maximum density at

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4°C

0°C

100°C

-4°C

Which of the following derivative cannot be prepared directly from acetic acid?

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Acetamide

Acetyl chloride

Ethyl acetate

Acetic acid

Kinetic energy of the molecules is due to

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Transnational motion

Rotational motion

Vibrational motion

All of these

In fructose the possible optical isomers are

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12

8

16

4

18 g glucose is dissolved in 90 g of water. The relative lowering vapor pressure is equal to :

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1/5

5.1

1/51

6

Butanenitrile is formed by reaction of KCN with

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Propyl alcohol

Butyl chloride

Butyl alcohol

Propyl Chloride

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