Question # 1

In solvay's process slaked lime is used to:

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Prepare CO₂

Prepare quick lime

Recover ammonia

Form Na₂CO₃

When the numbers of moles of both sides are equal in a reaction, then the unit of K_c will be:

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No unit

mol^-2 dm⁶

mol dm³

mol^-2dm

Human body uses carbohydrates in the form of

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Glucose

Maltose

Fructose

Galatose

Which one is Lewis Acid?

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BF₃

AICI₃

FeCl₃

All of these

Which one of the following is not a greenhouse Effect?

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Increasing atmosphere temperature.

Increasing food chains

increasing flood risks

Increasing sea-level

Coal tar contains compounds

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Benzene

Phenol

Toluene

All

Normaily rain water is weakly acidic because.

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SO₃

CO₂

CO₃

NO₂

Which part of digestive system glucose absorb.

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Stomach

Liver

Small intestine

Large intestine.

Fertilizers are used to make up the deficiency of;

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oxygen and carbon

iron and magnesium

nitrogen and phosphorus

hydrogen and calcium

How many % age of urea is used as fertilizers?

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80%

90%

95%

98%

The number of carbon atoms present in kerosene oil.

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8-12

9-12

10-12

11-12

The value of constant of ionic product of water Kw at 25 C.

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1.0 x 10^-4

1.0 x 10¹⁴

1.0 x 10^-4

1.0 x 10⁴

Temporary hardness can be removed by__________.

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Quick lime

Slaked lime

Lime stone

HCl

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