Question # 1

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

Acidic Acid is used for

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Cleaning metal

Etching designs

Flavouring food

Making explosives

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

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Proton

Electron pair

Neutron

Electron

Which one is not an Arrhenious acid?

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HCl

H2SO4

CO2

HNO3

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

Ammonia is a base, because it

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Ionizes in water to give OH- Ions

Can accept proton

Contains OH group

Can accept an election pair

In a neutralization reaction between KOH and H3PO4how many molecules of KOH will react with one molecule of H3PO4

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1

2

3

4

Caustic chemical drain cleaner are captable of dissolving.

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Hair

Food

Grease

All of these

Whcih acid is present in our stomach.

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Nitirc Acid

Hydrochloric acid

Sulphuric acid

All of the above

Which acid is used in he preparation of soaf.

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Oxalic Acid

Citric Acid

Stearic Acid

Tartaric Acid

How many hydroxide ions, calium hydroxide will release in water.

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2

1

3

zero

According to Arrhenius concept base is a substance which dissociates in aqueios solution to give

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Hydroxide ions

Hydrogen ions

Pair of Electrons

Proton

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