Question # 1

The unit of rate constant is same as that of rate of reaction in

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first order reaction

Second order reaction

Third order reaction

Zero order reaction

Depression of freezing point method is used for determination of molar masses of

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Electrolytes

Non-volatile solids

Volatile solids

Volatile liquids

Which one of the following orbital will be filled first.

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4f

5d

3d

4s

Which of the following substances is used as decolorizing agent.

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Silica gel

Animal charcoal

conc. H2SO4

Asbestos

Which of the following compound has the highest % o f oxygen by weight

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CH₃- OH

C₂H₅OH

HCOOH

H₂O

Upper consulate temperature for water phenol system is.

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150 ^oC

65.9 ^oC

120 ^oC

130 ^oC

The volume occupied by 16 g of CH4 at S.T.P.

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224.14 dm3

22.4 dm3

1.12 dm3

2.24 dm3

The Van der Waals' equation explain the behaviour of.

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Ideal gas

Real gas

Vapours

Non ideal gases

One of the following liquids has lowest vapour pressure at 32°C. Indicate that liquid

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Ether

Chloroform

Ethanol

Water

In a group of periodic table, ionization energy.

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Decreases

Increases

Remains same

First increases than increases

The vapour pressure of an aqueous solution of glucose is.

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Equal to vapour pressure of water

Independent of temperature

More than vapour pressure of pure water

Less than vapour pressure of pure water

Which one of the following has no tendency of form coordinate covalent bond with H+

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NH3

H2O

CH4

CH3OH

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

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500 nm

500 m

200 nm

5 x 10⁷m

Along period of periodic table shielding effects.

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Increases

Decreases

Remain constant

First increases than decreases

The volume of a gas at 0 oC is 273 dm3, the pressure remaining constant. At which temperature its volume will be doubled.

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273 K

273 ^oC

546 ^oC

316 K

Which statement is incorrect about order of reaction

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It cannot be determined experimentally

It is determined experimentally

Sum of exponents in rate equation

It can have fraction value

Which liquid has low boiling point with.

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Less intermolecular force and higher V.P

Greater intermolecular forces and low V.P

Bigger size and greater polarizability

High hydrogen bonding in it

Lyman series lie in

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Ultraviolet region

Visible region

Infrared region

Radio waves region

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