Question # 1

Quantum number values for 2p orbitals are.

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n = 2, 1 =1

n =1, 1 = 2

n =1, 1= 0

n = 2, 1 = 0

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

A real gas obeying Van der Waal's equation will resemble ideal gas if.

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Both a and b are large

Both a and b are small or zero

A is small and b is large

A is large and b is small

The voltage Nickel Cadmium cell is

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1 V

1.2 V

1.4 V

1.6 V

Which molecule has sG2 hybridization.

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CH4

C2H4

C2H2

C2H5

The partial pressure of oxygen in lungs is

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760 torr

320 torr

159 torr

116 torr

Which one of the following has the greater ionic characters in it.

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HF

HCl

H2O

H2

If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air

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Remains constant

Increase

Decrease

Increase a bit

The cathodic reaction in the electrolysis of dil H2SO4 with Pt electrodes is.

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Reduction

Oxidation

Both oxidation or reduction

Neither oxidation nor raduction

Cadmium has isotopes.

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3

4

5

9

In cubic and hexagonal closest packing which layer has different arrangement.

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First

Second

Third

Fourth

The number of moles of CO₂which contain 8.0 g of oxygen

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0.25

0.50

1.0

1.50

I molar volume of a gas at S.T.P is occupied by

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1 g of gas

6 x 10²³g of gas

22.4 m³of gas

1 gram molecular mass of gas

Which particle have greater wave nature.

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Electron

Proton

Neutron

a particles

Which statement is correct about solubility product constant.

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It is applicable at highly soluble substances.

Value of Kap is independent of temperature

It is used for homogeneous aquarium system

It can be used to predict that precipitation will take place or not by combining two ions

With increase in 10°C temperature, the rate of reaction double. This increase in rate of reaction is due to

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Decrease in activation energy of reaction

Decrease in the number of collisions between reactant molecules

Increases in activation energy of reactants

Increase in number of effect collisions

Isomorphic crystals show

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Same chemical properties

Same physical properties

Same crystalline form

Same melting point

The commonly used unit of pressure by meteorologists is.

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Atmosphere

Pascal

Milli

Pound inch3

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