Question # 1

In forth flotation process the ore particles are preferentially wetted by:

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water

oil

benzene

petrole

A strange bitter smell noticed near photocopiers is of:

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SO2

H2S

O2

O3

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

How many % age of nitrogen present in air by volume?

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70%

75%

78%

80%

Which one of the following does ot contain protein

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Pulses

Potatoes

Beans

eggs

If Qc < Kc the reaction goes in:

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Forward

Reverse

At equilibrium state

None

Nucleic acids made up of long chain of.

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Nucleotide

Fatty acids

Amino acid

None of them

The alkanes consisting of C₅ to C₁₀

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gases

liquids

solid

plasma

A conjugate acid is a specie formed by accepting a.

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Proton

Electron pair

Neutron

Electron

The energy provided by carbohydrates in per gram.

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17 KJ

21 KJ

35 KJ

10 KJ

Red hair contains compound of.

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Iron

copper

titanium

Molybdenum

Which is not a poisonous gas?

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Ozone

Chlorine

Carbon di oxide

All of them

Alkynes are also called.

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Olefine

Ethene

Paraffins

Acetylenes

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