Question # 1

Latin word 'Acidus' means:

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sweet

salty

sour

bitter

Which is a Lewis base?

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H⁺

NH₄

BF₃

AlCl₃

A product of any Lewis acid base reaction is a single specie called.

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Salt

Water

Adduct

None of these

Sum of PH and POH of a solution is:

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7

14

16

18

Which one Ion is not present in salt.

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Metallic cation

Anion of Base

Anion of acid

None metallic anion

According to Lewis concept, acid is a substance which.

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Can donate protons

Can donate an electron pair

Can accept protone

Can accept electron pair

Formula of Potassium ferrocyanide.

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K₄[Fe(CN)₆]^-4

K₃[Fe(CN)₄]^-3

K₂[Fe(CN)₆]^-4

K₄[Fe(CN)₅]^-4

Arrhenius presented his concept about acids and bases in.

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1785

1787

1923

1930

Soda lime is a mixture of..

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CaCl, + KOH

NaOH + CaO

NaOH + CaCl₂

Ca(OH)₂ + CaO

Arrhenius put forward acid base concept in.

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1878

1786

1787

1790

Bases gave taste:

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Bitter

Sweetsh

Sour

Saltish

Potassium ferrocyanide salt is.

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Normal

complex

Basic

Acidic

Which is used for cleaning agent for domestic and commercial purpose?

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NaCl

Na₂CO₃

NaHCO₃

Na₂SiO₃

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