Question # 1

Which acid is used for etching glass?

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HF

HCl

HBr

HI

Essential components of every living all are.

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Nucleic acids

Enzymes

Lipids

Cell wall

Enzymes are proteins which have the following properties except.

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They catalyze reaction

They are highly non-spcific

They are highly efficient

They are pro

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

Which one of the following does not contain proteins.

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In pulses

In Potatoes

In fruits

In eggs

Which is a hereditary material?

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DNA

RNA

Protein

All of them

When acid react with carbonates and bicarbonates which gas is evolved?

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H2

CO₂

Cl₂

N₂

Which one of the following is not a fraction of petroleum?

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Kerosene oil

Diesel oil

Alcohol

Petrol

Sodium zeolite is naturally occurring reason of .

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NaAl (SiO₃)₂

Na₂CO₃

CaCO₃

Na₂SIO₃

The body reactions are catalized by.

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Amino acids

Lipids

Enzymes

Fatty acids

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

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Salts

Algae

Fishes

All of them

Blonde hair contains compound of.

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Iron

Copper

titanium

Molybdenum

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

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