Advertisements
Advertisements
Question
Write the chemical reaction when iron reacts with dilute H2SO4.
Solution
When iron reacts with dilute H2SO4, iron (II) sulphate with the evolution of hydrogen gas is formed.
\[\ce{Fe_{(s)} + H2SO4_{(aq)} -> FeSO4_{(aq)} + H2_{(g)}}\]
APPEARS IN
RELATED QUESTIONS
A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green
Why is sodium kept immersed in kerosene oil?
Food cans are coated with tin and not with zinc because ______.
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
Explain the following reaction with the help of a balanced chemical equation:
Magnesium reacts with hot water.
Name the metal which has been placed just below copper in the reactivity series.
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.
Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.
Describe the reaction of potassium with water. Write the equation of the reaction involved.
The elements whose oxides can turn phenolphthalein solution pink are:
(a) Na and K
(b) K and C
(c) Na and S
(d) K and P
An acidic oxide is produced by the element:
(a) Na
(b) C
(c) Ca
(d) H
The least reactive metal among the following is:
(a) sodium
(b) silver
(c) copper
(d) lead
An element X reacts with hydrogen, when heated, to form a covalent hydride H2X. If H2X has a smell of rotten eggs, the element X is likely to be:
(a) carbon
(b) sulphur
(c) chlorine
(d) phosphorus
The metals which can produce amphoteric oxides are:
(a) sodium and aluminium
(b) zinc and potassium
(c) calcium and sodium
(d) aluminium and zinc
Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe
Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.
What are noble gases
Where does the metal aluminium, used in the process, occurs in the reactivity series of metals?
Why is acidified water considered to be a good conductor of electricity?
