Question # 1

The unit of rate constant for a zero order reaction is

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Liter sec^-1

Liter mol^-1sec^-1

Mol liter^-1sec^-1

Mol sec^-1

Sodium metal cannot be stored under

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Benzene

Kerosene oil

Alcohol

Toluene

SO₂ and NO₂ pollution by increasing

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Alkalinity

Acidity

Neutrality

Buffer action

Which of the following will not change the concentration of ammonia in the equilibrium N₂(g) + 3H₂(g) 2NH₃(g): ΔH = -kj

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Increase of pressure

Increase of temperature

Decrease of volume

Addition of catalyst

Which one of the halogen acid is a liquid?

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HF

HCI

HBr

HI

The number of unpaired electrons in the P-subshell of oxygen atom

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1

2

3

4

1-Chloropropane has two isomers It is an example of

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Chain isomerism

Position isomerism

Functional group isomerism

Metamerism

Which is the most volatile compound?

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HI

HCI

HBr

HF

Ozone is not

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An allotrope

A powerful oxidizing agent

Paramagnetic

A bent molecule

Benzene is obtained by fractional distillation of

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Heavy oil

Anthracene oil

Middle oil

Light oil

The effect of increasing the pressure on the following equilibrium 2A + 3B | | 3A + 2B is

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Forward reaction is favoured

Backward reaction is favoured

No effect

None of the above

Benezene is obtained by fractional distillation of

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Heavy oil

Anthracene oil

Middle oil

Light oil

An electrolyte

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Forms complex ions in solution

Gives ions only when electricity is passed

Possesses ions even in solid state

Gives ions only when dissolved in water

The main structure features of proteins is

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An ester linkage

An ether linkage

The peptide linkage

All

Which has largest first ionization energy?

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Li

Na

K

Rb

The wire in the flash bulbs is made up of

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Mg

Ba

Cu

Ag

With increasing principle quantum number, the energy difference between adjacent energy levels in H atom

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Decreases

Increases

Remain constant

Decreses for low value of Z and increases for higher value of Z.

Sea weeds are important source of

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Iron

Chlorine

Iodine

Bromine

The alkali metal which is liquid at 15°C is

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K

Cs

Na

None

What happens when CCl₄is treated with AgNO₃solution?

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NO₂will be evolved

A white ppt. of AgCl will form

CCl₄will dissolve in AgNO₃solution

Nothing will happen

Phosphorus pentoxide finds use as

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An oxidizing agent

A reducing agent

a bleaching agent

A dehydration agent.

Inter molecular forces in solid hydrogen are

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Covalent forces

Van der Waal forces or London dispersion forces

Hydrogen bonds

All of these.

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