equation - 4 Flashcards by Adib Ahmed

Q

Reaction of conc. HNO3 with Sulphur

A

S + 6HNO3 → H2SO4 + 2H2O + 6NO2

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Q

Reaction of conc. HNO3 with Carbon

A

C + 4HNO3 → CO2 + 2H2O + 4NO2

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Q

Reaction of dil. HNO3 with Copper

A

3Cu + 8HNO3 → 3Cu(NO3)2 + 4H2O + 2NO2

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Q

Reaction of very dil. HNO3 with Magnesium

A

Mg + 2HNO3 → Mg(NO3)2 + H2

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Q

Reaction of conc. HNO3 with Copper

A

Cu + 4HNO3 → Cu(NO3)2 + 2H2O + 2NO2

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Q

A

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Q

Test for Nitric Acid

A

FeSO4 + 3H2SO4 + 2HNO3 → 3Fe(SO4)2 + 4H2O + 2NO

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Q

Brown Ring Test

A

FeSO4 + NO → FeSO4.NO (Brown ring)

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Q

A

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Q

Effect of Heat on Potassium Nitrate

A

2KNO3 → 2KNO2 + O2

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Q

Effect of Heat on Sodium Nitrate

A

2NaNO3 → 2NaNO2 + O2

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Q

Effect of Heat on Lead Nitrate

A

2Pb(NO3)2 → 2PbO + 4NO2 + O2

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Q

Effect of Heat on Copper Nitrate

A

2Cu(NO3)2 → 2CuO + 4NO2 + O2

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Q

Effect of Heat on Silver Nitrate

A

2AgNO3 → 2Ag + 2NO2 + O2

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Q

Effect of Heat on Ammonium Nitrate

A

NH4NO3 → N2O + 2H2O

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Q

A

Q

Manufacture of Sulphuric Acid (Contact Process)

A

SO2 is produced by burning sulphur or iron pyrites

Q

Oxidation of SO2 in Contact Tower

A

2SO2 + O2 → 2SO3 (V2O5 catalyst, 450-500°C, 1-2 atm pressure)

Q

Oleum Formation in Absorption Tower

A

SO3 + H2SO4(98%) → H2S2O7

Q

Dilution of Oleum to Sulphuric Acid

A

H2S2O7 + H2O → 2H2SO4

Q

A

Q

Reaction of Dil. H2SO4 with Zinc

A

Zn + H2SO4 → ZnSO4 + H2

Q

Reaction of Dil. H2SO4 with Sodium Carbonate

A

Na2CO3 + H2SO4 → Na2SO4 + H2O + CO2

Q

Reaction of Dil. H2SO4 with Sodium Sulphite

A

Na2SO3 + H2SO4 → Na2SO4 + H2O + SO2

Sulphuric Acid as a Dibasic Acid

H2SO4 → 2H+ + SO4 2-

Formation of Acid Salt

NaOH + H2SO4 → NaHSO4 + H2O

Formation of Normal Salt

2NaOH + H2SO4 → Na2SO4 + 2H2O

Conc. H2SO4 as a Non-Volatile Acid

NaCl + H2SO4 (<200°C) → NaHSO4 + HCl

Conc. H2SO4 with KNO3

KNO3 + H2SO4 (<200°C) → KHSO4 + HNO3

Conc. H2SO4 as an Oxidizing Agent

C + 2H2SO4 → CO2 + 2H2O + 2SO2

Reaction of Sulphur with Conc. H2SO4

S + 2H2SO4 → 3SO2 + 2H2O