Question # 1

The product of any Lewis acid-base reaction is a single specie called:

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free radical

adduct

molecular ion

conjugate

Which type of reactions take place in both directions?

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Addition reactions

Reversible reactions

Irreversibel reactions

Decomposition reactions

The % age of carbon is lignite is

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60

70

80

90

The envelope of different gases around the earth is called.

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Atmosphere

Brosphere

Lithosphere

Hydrosphere

Arrhenius put forward acid base concept in.

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1878

1786

1787

1790

Which one is not an Arrhenius base?

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NaOH

KOH

Ca(OH)₂

NH₃

Sodium carbonate is manufactured by.

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Haber's process

Ostwald's process

Solvay's process

All

According to the Lewis concept acid is a substance which can.

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Donate a proton

Donate a pair of electron

Accept a proton

Accept a pair of electron.

Which part of digestive system glucose absorb.

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Stomach

Liver

Small intestine

Large intestine.

Which compound do not produce in the halogenation of methane.

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Chloroform

Carbon tetrachloride

Carbon black

Chloromethane

Night blindness is because of deficiency of:

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Vitamin A

Protein

Vitamin C

Vitamin D

Citric acid is present in

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Citrus fruits

Sour milk

Rancid butter

Apple

One H₂O molecule can form hydrogen bonding with how many other H₂O molecules?

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One

Two

Three

Four

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