Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
When the copper plate is dipped in AgNO3 solution, silver from the solution gets deposited on the copper plate. This happens because copper is a more reactive metal than silver and it displaces silver from the silver nitrate solution.
2AgNO3(aq) + Cu(s) → Cu(NO3)2(aq) + 2Ag(s)
APPEARS IN
संबंधित प्रश्न
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
Complete and balance the following equation:
Na + O2 →
Fill in the following blank with suitable word:
Magnesium liberates ............... gas on reacting with hot boiling water.
What happens when a rod of zinc metal is dipped into a solution of copper sulphate? Give chemical equation of the reaction involved.
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
What is the action of water on sodium ? Write equation of the chemical reaction involved.
What is the action of water on magnesium ? Write equation of the chemical reaction involved.
Name another metal oxide which behaves like aluminium oxide.
Write the equation for the reaction of Magnesium with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
You are given a solution of AgNO3. Which of the following do you think cannot displace Ag from AgNO3solution?
(a) Magnesium
(b) Zinc
(c) Gold
(d) Copper
An element X forms two oxides XO and XO2. The oxide XO is neutral but XO2 is acidic in nature. The element X is most likely to be:
(a) sulphur
(b) carbon
(c) calcium
(d) hydrogen
State and explain the reaction, if any, of the following metals with a solution of copper sulphate:
(a) Gold
(b) Copper
(c) Zinc
(d) Mercury
When calcium metal is added to water, the gas evolved does not catch fire but the same gas evolved on adding sodium metal to water catches fire. Why is it so?
A zinc plate was kept in a glass container having CuSO4 solution. On examining it was found that the blue colour of the solution is getting lighter and lighter. After a few days, when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and give chemical equation of the reaction involved.
Choose the correct alternative and rewrite the following:
Reaction of iron nails whith copper sulphate solution is an example of _____________________
Write the chemical equation of the above process.
Write the chemical equation for the following reaction:
Calcium metal reacts with water.
Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
