Question # 1

The shape of Sncl2 molecule is.

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Linear

Angular

Trigonal planar

Tetrahedral

the nature of the positive rays depend on

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The nature of the electrrode

The nature of the discharge tube

The nature of the residual gas

All of the above

Which one of the following correctly describe the shape of NH3 molecules.

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tetrahedral

Pyramidal

Angular

Square planar

Solubility of which substance decreases by incressing temperature.

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NaNO3

KNO2

NaCl

Ce2(SO4)3

Which has greater reduction potential

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Na

H2

Zn

F2

The boiling point of glycerin at one atm is.

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280 ^oC

290 ^oC

100 ^oC

110 ^oC

The optimum temperature for the synthesis of NH3 by Haber's process is.

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200 ^oC

300 ^oC

400 ^oC

500 ^oC

What is oxidation state of chlorine in Ca(ClO3)2

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+1

+3

+5

+7

pH of rain water.

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7

Slightly basic

slightly acidic

Highly basic

The unit of rate constant depends upon

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Number of reactants

Concentration terms

Order of reaction

Molecularity of reaction

the rate of reaction when concentration of reactants are taken unity is called.

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Average rate

Instantaneous rate

Specific rate

Rate equation

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Fe is reduced

Fe is oxidized

CI₂is oxidized

None of these

The deviation of a gas from ideal behaviour is maximum at.

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-10 ^oC and 5.0 atm

-10 ^oC and 2.0 atm

100 ^oC and 2.0 atm

0 ^oC and 2.0 atm

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

Unit of mole fraction is

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mol dm-3

mol kg-1

g dm-3

No unit

______ Molecule has zero dipole moment.

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CO

H2S

SO2

CH4

Photosynthesis a photochemical reaction has order of reaction

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0

1

2

Fractional order

Feeling uncomfortable breathing in un pressurized cabins is due to

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High pressure of CO2

Fatigue

Low pressure of O2

Low presssure of CO2

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