Question # 1

The unit of molar concentration:

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mol. dm^-2

mol. dm^-1

mol. dm

mol. dm^-3

At equilibrium state, when reaction cases to proceed, it is called:

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equilibrium constant

dynamic equilibrium

static equilibrium

simple equilibrium

Which is used to remove the grease stains from clothes?

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NaOH

KOH

Al(OH)₃

NH₄OH

Which is the major effect of global warming?

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Increase in temperature.

Rise in sea level

Melting of glaciers

All of them

The reaction goes from left to right , if:

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Qc = Kc

Qc > kc

Qc<Kc

Qc = 0

the removal of which ion causes water softening.

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Na⁺

Mg²

Li⁺

K⁺

In laboratory urea was prepared by

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Wohler

Rutherford

Berzelius

Dalton

Which is present 85% in natural gas?

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Ethane

Propane

Methane

Butane

A complete reaction is one is which.

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All the reactants convert into products.

All the reactants do not convert into products.

Half reactants convert into products.

Only 10% reactants convert into products.

When glucose and fructose combine they produce

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Starch

Cellulose

Sucrose

None of these

The major components of Atmosphere are:

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Carbon and Nitrogen

Nitrogen and Oxygen

Oxygen and Chlorine

None of these

Which one of the following statements is not correct about active mass?

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Rate of reaction is directly proportional to activ emass.

Active mass is taken in molar concentration

Active mass is represented by square brackets

Active mass means total mass of substances.

Which diseases cause by the deficiency of vitamin E?

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Rickets

Anemia in babies

Scurvy

Night blindness

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