Question # 1

According to Bronsted and Lowry concept, an acid is a substance that can donate.

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Proton

Electron pair

Neutron

Electron

Predict themain characteristics of the reactions of metals with acids.

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Metals are dissolved

Hydrogen gas is envolved

Metals are coverted into salts

All the above mentioned characteristics are true

Which compound formed when SO2 is dissolved in water

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H2SO3

SO3

H2SO

H2S2O7

When a chemical reaction is carried out with a substancZ; a gas is produced which turns red litmus paper blue. What is the reaction?

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Reaction of an acid with a meal carbonate

Reactin of an alkali with ammonium salt

Reaction of an acid with ammonium salt

None of these

Which is used to manufacture soap?

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NH4OH

Ca(OH)2

NaOH

Mg(OH)2

Acid rain has pH less than.

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6

7

7.4

5.6

A reaction between an acid and a base produces

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Salt and an acid

Sald and base

Salt and water

Salt and gas

Milk of magnesia contains Mg(OH)2 It is used as antacid It neutralizes excess stomachaacid. Which salt is formed in this reaction.

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MgCl2

MgSO4

MgCO3

MgO

Which of the following contains oxalic acid

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Orange

Sour Milk

Tomato

Tamarind

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