Question # 1

Lewis acid-base concept have the following characteristics except:

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formation of an adduct

Formation of a co-ordinate covalent bound

Donation and acceptance of an electron pair

Donation and acceptance of a proton

Mallic acid is present in

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Apple

Feats

String of bees

Urine

Potassium ferrocyanide salt is.

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Normal

complex

Basic

Acidic

Bases gave taste:

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Bitter

Sweetsh

Sour

Saltish

Lactic acid founds in:

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Citrus fruits

Sour milk

Rancid Butter

Apple

Which one is not a characteristic of an acid:

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it turns red litmus blue

it reacts with base to form salt and water

Its aqueous solution conduct electric current

it has sour taste

Dilute acid react with carbonates the produce product except _________

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Salt

Water

Carbon di oxide

Hydrogen gases

The bond in the product of lewis acid base reaction.

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Ionic

Covalent

Metallic

Coordinate covalent

The colour of litmus paper in strong acidic solution.

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Red

Blue

Yellow

Colourless

When acids react with metals which gas is evolved?

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H₂

O₂

Cl₂

N₂

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