Advertisements
Advertisements
प्रश्न
What will happen if a strip of zinc is immersed in a solution of copper sulphate?
उत्तर
If a zinc strip is immersed in a solution of copper sulphate, the blue colour of copper sulphate fades due to the formation of colourless zinc sulphate. The metal, copper, reddish-brown in colour is deposited on the zinc strip.
CuSO4(aq) + Zn(s) → ZnSO4(aq) + Cu(s)
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word:
Magnesium liberates ............... gas on reacting with hot boiling water.
Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.
A copper plate was dipped in AgNO3 solution. After certain time, silver from the solution was deposited on the copper plate. State the reason why it happened. Give the chemical equation of the reaction involved.
Name two metals which cannot displace hydrogen from dilute acids.
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?
Name one metal which displaces silver from silver nitrate solution and one which does not.
The least reactive metal among the following is:
(a) sodium
(b) silver
(c) copper
(d) lead
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.
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
