Question # 1

Which one of the following substances is not amorphous

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Polymer

Rubber

Glass

AgNO₃

The unit of rate constant depends upon

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Number of reactants

Concentration terms

Order of reaction

Molecularity of reaction

In silver oxide battery, anode is made of.

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Zinc

Copper

Lead

Graphite

Lyman series lies in spectral region

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Infrared

Ultra violet

Visible

None of these

Which of the following has linear structure.

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CO2

NH3

CH4

H2O

In mass spectrometry, ions are produced by

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Heat at high temperature

Passing gas through high voltage plates

Throwing fast moving electrons on gas molecules

All of them

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

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zero

More than unity

Less than unity

Unity only

Which element has highest ionization potential

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Li

Na

K

Rb

The shape of diamond crystal is.

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cubic

Hexagonal

Tetragonal

Orthorhombic

The velocity of photon is

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Independent of its wavelength

Depends on its wavelength

Equal to square of its amplitude

Depends on its source

One dm3 of a buffer solution containing 0.01 M NH4Cl and 0.1 M NH4OH having pKa of 3 has pH.

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4

6

9

10

Which of the following contains the same number of molecules as 9 g of water.

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2 g of hydrogen gas

14 g of nitrogen gas

32 g of oxygen gas

44 g of carbon dioxide gas

The number of moles of hydrogen atoms in 3.2 g of methane CH4.

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0.2

0.4

0.6

0.8

Whenever a reaction is endothermic, then it means that

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Heat is transferred from surrounding to the system

Heat is transferred system to the surrounding

Heat content of the product is greater than that of reactants

Heat content of the reactants is greater than the products

The law of mass action was given by

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D.C. down and P wage

Gay Lussic and C.M

C.M Goldberg and P. Waage

Hendeson and Le Chateller's

Azeotropic mixture

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Obey Raoult's law

Do not obey Raoult's law

Boils at low temperature only

Boils at high temperature only

The iodine present in water can be separated by which one of the following techniques

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Sublimation

Chromatography

Filtration

Solvent extraction

The distillation of a solution under reduced pressure is called

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Fractional distillation

Destructive distillation

Distillation

Vacuum distillation

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