Question # 1

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

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Sugar

Proteins

Fats

DNA

Water molecule show structure.

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Tetrahedral

Trigonal

Pentagonal

All of them

Inland water includes.

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River

Lakes

Streams

All of them

Which one of these hydrocarbon molecules would have no effect on an aqueous solution of bromine?

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CH₄

C₁₀H₂₀

C₂H₄

C₂H₂

The value of K_c depends on.

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Temperature

Pressure

Volume

Atmosphere

The raw materials for the manufacturing of urea are.

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Ammonia

Carbondioxide

Limestone

a & b

A saturated solution of sodium chloride is called.

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Brine

Suspension

Colloidal

None of these

A disease is caused by excess of bile pigments in the blood is.

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Typhoid

Jaundice

Cholera

Dysentery

Which one of the mineral acid.

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HCl

H₂SO₄

HNO₃

All of these

Sea water in unfit for drinking purpose die to the presence of.

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Salts

Algae

Fishes

All of them

The general formula of alkynes is

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C_nH_2n

C_nH_2n+2

C_nH_2n-2

C_n H_2n+1

The water which produces good lather with soap is called:

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soft water

hard water

heavy water

typical water

Synthesis of protein is directed by.

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DNA

RNA

Both of them

None of them

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