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प्रश्न
Name the metal which has been placed just below copper in the reactivity series.
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उत्तर
Mercury is the metal that has been placed just below copper in the reactivity series.
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संबंधित प्रश्न
Iron is
(a) More reactive than zinc
(b) More reactive than aluminium
(c) Less reactive than copper
(d) Less reactive than aluminium
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Write the electron-dot structures for sodium, oxygen and magnesium.
Explain the following reaction with the help of a balanced chemical equation:
Magnesium reacts with hot water.
From amongst the metals sodium, calcium aluminium, copper and magnesium, name the metal:
(i) which reacts with water only on boiling, and
(ii) another which does not react even with steam.
Which of the two metals is more reactive: copper or silver?
How would you show that silver is chemically less reactive than copper?
Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Complete and balance the following equation:
Cu (NO3)2 (aq) + Zn(s) →
What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.
What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with water.
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.
Name one metal which displaces copper from copper sulphate solution and one which does not.
Which non-metal has been placed in the reactivity series of metals?
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
A metal less reactive and another metal more reactive than hydrogen are:
(a) aluminium and lead
(b) iron and magnesium
(c) copper and tin
(d) copper and mercury
CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s)
FeSO4(aq) + Zn(s) → ZnSO4(aq) + Fe(s)
On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.
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.
Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
- Good thermal conductivity
- Good electrical conductivity
- Ductility
- High melting point
Metals are generally solid. Which of the following metals is in the liquid state at room temperature?
