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Decomposition Reaction
Decomposition Reaction
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1)
Hydrated ferrous sulphate is commonly known as ______.
Blue vitriol
Green vitriol
Yellow vitriol
Brown vitriol
2)
Which of the following is the solid residue obtained on heating ferrous sulphate in a glass tube?
Ferrous sulphide
Ferrous oxide
Ferric oxide
Ferrous sulphite
3)
What are the products obtained when hydrated oxalic acid is heated at 373K?
Formic acid & water
Acetic acid & CO₂
Oxalic acid & water
CO & CO₂
4)
What is the valency of iron in ferrous sulphate?
1
2
3
4
5)
What are the products of the decomposition reaction of ferrous sulphate that occur on heating?
SO₃, SO₂, FeO
SO₃, Fe₂, O₃
SO₃, SO₂, Fe₂O₃
SO₂, FeO
6)
During the experiment of heating of ferrous sulphate, four students recorded their observation as (i) Green colour changes to brown black colour. (ii) Brownish yellow gas is evolved. (iii) Blue colour changes to green colour. (iv) Smell of burning sulphur is observed. Which of the above observations are correct?
(i), (ii)
(i), (iv)
(ii), (iii)
(iii), (iv)
7)
What is the gas produced due to the decomposition of potassium chlorate?
Oxygen
Carbon dioxide
Chlorine
Carbon monoxide
8)
The gas(s) evolved during the decomposition of ferrous sulphate is/are:
SO₂
SO₃
SO₂ and SO₃
O₂
9)
The following picture shows the heating of lead nitrate. On heating two gases are evolved, one is colourless and the other is brown in colour. Which gases are they?
Oxygen and nitrogen dioxide
Hydrogen and lead oxide
Hydrogen and oxygen
Oxygen and nitrous oxide
10)
The following four different experimental set up shows the heating of ferrous sulphate. Which one gives the correct observation?