Question # 1

Which is used for cleaning agent for domestic and commercial purpose?

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NaCl

Na₂CO₃

NaHCO₃

Na₂SiO₃

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.

The nitrogen present in urea is used by plants to synthesize.

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Sugar

Proteins

Fats

DNA

White viscous fluid present in an egg is.

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Proten

Fats

Vitamin

Carbohydrates.

Some organic compound are soluble in water due to the presence of .

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-OH

H⁺

Botha a and b

Covalent bond

Silicon occurs in the form of

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Silica

Silicates

both a and b

None of these

Equilibrium constant has no unit when number of moles of reactants and products are:

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same

Different

Both a and b

None of these

Rickets disease is caused by the deficiency of.

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Vitamin D

Vitamin A

Vitamin E

Vitamin C

The carbon contents in lignite is.

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80%

50%

60%

70%

The stratosphere layer is at height above the earth's surface.

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0-12 km

12-50 km

50-85 km

65-120 km

Which factor determines the severity of a pollutant?

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Chemical nature

concentration

Persistence

All of them

Bister copper is pure about;

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70%

80%

90%

98%

Substitution reaction is the characteristics of.

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Alkanes

Alkenes

Alkynes

None of these

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