Question # 1

During the electrolysis of molten NaCI, the ion which is reduce is

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A solution has pH zero. Its H+ ions concertation will

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zero

More than unity

Less than unity

Unity only

SP^3-hybridization in important in describing the bonding in

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Which one of the following gases diffuse more rapidly.

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Cl2

CO2

CH4

N2

Which of the following solutions has the highest boiling point

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5.85% solution of sodium chloride

18.0% solution of glucose

6.0% solution of urea

All have the same boiling points

The cathodic reaction in the electrolysis of dil H2SO4, with pt electrode sis.

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Reduction

Oxidation

Both oxidation and reduction

Neither oxidation nor reduction

The wave number of the light emitted by a certain source is 2 x 10⁶ m-1 . The wavelength of this light will be.

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500 nm

5000 nm

200 nm

5 x10⁷ m

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Fe is reduced

Fe is oxidized

CI₂is oxidized

None of these

In H2SO4the oxidation number of 'S' is

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+2

+6

+8

+4

Half -Life for a given reaction is doubled if initial concentration is doubled. The order of reaction is.

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0

1

2

3

The highest temperature above which a gas cannot be liquified, no matter how much the pressure is applied is known as

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Boiling temperature

Consulate temperature

Absolute zero

Critical temperature

A solution will be unsaturated if

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Ionic product = Kap

Ionic product < Ksp

Ionic Product > Ksp

both 'a' and 'b' are correct

Orbitals having same energy are called

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Hybird orbitals

Valence orbitals

Degenerate orbitals

D-orbitals

The rate of reaction

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Increases as the reaction proceeds

Decreases as the reaction proceeds

Remains the same as the reaction proceeds

May decrease or increase as the reaction proceeds

Electrolysis is used for

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Electroplating

Refining of copper

Manufacture of caustic soda

All of the above

When atoms are subjected to strong electric field, splitting of spectral lines is called.

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Zeeman effect

stark effect

Photoelectric effect

Compton effect

An azeotropic mixture of two liquids boils at lower temperature than either of them when.

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It is saturated

It shows positive deviation from Raoult's law

It shows negative deviation from Raoult's law

It is metastable

Which of the following has coordinate covalent bond.

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NH4

NaCl

HCl

AlCl3

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