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Water (Part I)

Description: Water (Part I) Air and Water
Number of Questions: 25
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Tags: Water (Part I) Air and Water
Attempted 0/25 Correct 0 Score 0

Which of the following properties of water has highest value?

  1. Viscosity

  2. Acidity

  3. Basicity

  4. Surface tension


Correct Option: D

Electrolysis of water results in the formation of

  1. hydrogen and nitrogen

  2. hydrogen and oxygen

  3. helium and argon

  4. carbon monoxide and oxygen


Correct Option: B

The molar mass of water is given as

  1. 15.15 g/mol

  2. 18.02 g/mol

  3. 17.01 g/mol

  4. 12.03 g/mol


Correct Option: B

The substances that dissolve readily in water are known as

  1. acidic

  2. basic

  3. hydrophilic

  4. hydrophobic


Correct Option: C

One molecule of water is composed of

  1. one hydrogen atom covalently bonded to one oxygen atom

  2. one hydrogen atom covalently bonded to two oxygen atom

  3. two hydrogen atoms covalently bonded to one oxygen atom

  4. two hydrogen atoms covalently bonded to two oxygen atom


Correct Option: C

The percentage of earth's surface covered by water is

  1. 50%

  2. 71%

  3. 30%

  4. 29%


Correct Option: B

Which of the following options is not soluble in water?

  1. Acids

  2. Alcohols

  3. Salts

  4. Fats


Correct Option: D

Water can be split into its constituents by passing electric current through it in a process called ______ .

  1. hydration

  2. electrolysis

  3. autoionisation

  4. evaporation


Correct Option: B

The spherical shape of the drop of water is due to

  1. hydrogen bonding in water

  2. tetrahedral structure in water

  3. surface tension in water

  4. viscosity of water


Correct Option: C

Reaction of water with metal gives

  1. acid

  2. base

  3. amphoteric substance

  4. no product


Correct Option: B

In which of the following states of water, the molecules of water move very fast?

  1. Solid state

  2. Gaseous state

  3. Liquid state

  4. All of the above


Correct Option: B

Which of the following processes results in the formation of clouds from water vapours?

  1. Precipitation

  2. Condensation

  3. Evaporation

  4. Collection


Correct Option: B

Which of the following states is/are present at the triple point of water?

  1. Solid

  2. Liquid

  3. Gaseous

  4. All of these


Correct Option: D

Which of the following properties of water molecules is related to capillary action?

  1. Cohesion

  2. Adhesion

  3. Surface tension

  4. Evaporation


Correct Option: B

Between freezing point and boiling point, water exists as _______ .

  1. solid

  2. liquid

  3. gas

  4. liquid and gas


Correct Option: B

The density of water is maximum at ______ .

  1. 0°C

  2. 4°C

  3. 10°C

  4. 100°C


Correct Option: B

The property by virtue of which water molecule is attracted to another water molecule is known as

  1. adhesion

  2. cohesion

  3. evaporation

  4. condensation


Correct Option: B

Which of following types is the intermolecular bonding in water?

  1. Covalent bonding

  2. Ionic bonding

  3. Hydrogen bonding

  4. Covalent and ionic bonding


Correct Option: C

The effectiveness of soap is reduced, when it is used in _______ .

  1. cold water

  2. warm water

  3. soft water

  4. hard water


Correct Option: D

The chemical reaction which results in the formation of soap is called

  1. nitration

  2. chlorination

  3. oxidation

  4. saponification


Correct Option: D

Which of the following processes is not a part of water cycle?

  1. Transpiration

  2. Condensation

  3. Filtration

  4. Precipitation


Correct Option: C

Chemically water can be called an/a

  1. acid

  2. base

  3. amphoteric substance

  4. none of the above


Correct Option: C

Which of the following statements is correct about water?

  1. Water shows capillary action.

  2. Ice is denser than water.

  3. Water is not a very strong solvent.

  4. The intermolecular bonding in case of water is hydrogen bonding.


Correct Option: A

The substances that mix well and dissolve in water are known as _______ and those that do not mix well with water are known as _______.

  1. acidic, basic

  2. molecules, compounds

  3. nonpolar, polar

  4. hydrophilic, hydrophobic


Correct Option: D

The bonding between a molecule of water and a molecule of methanol is called intermolecular bonding. It is a type of

  1. ionic bonding

  2. weak Van der Waal's interaction

  3. hydrogen bonding

  4. ionic and hydrogen bonding


Correct Option: C
Explanation:

The bonding between a molecule of water and a molecule of methanol is called intermolecular bonding, and it is a type of hydrogen bonding.

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