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प्रश्न
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
(a) Zn
(b) Ag
(c) Cu
(d) Mg
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उत्तर
(b) Ag
Ag will be replaced from the solution of its salt by the other three metals.
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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
Write equations for the reactions of iron with steam.
Show the formation of Na2O by the transfer of electrons.
Write equation for the reaction of sodium with oxygen.
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
Which of the following elements would yield an acidic oxide.
Na, S, C, K, H
Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.
Can we keep sodium immersed under water? Why?
What special name is given to substances like aluminium oxide.
A basic oxide will be formed by the element:
(a) K
(b) S
(c) P
(d) Kr
An acidic oxide is produced by the element:
(a) Na
(b) C
(c) Ca
(d) H
Zinc oxide is a metal oxide. Which of the following term best describes the nature of zinc oxide:
(a) an acidic oxide
(b) a basic oxide
(c) an amphoteric oxide
(d) a neutral oxide
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
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.
Name a metal which It does not react with any physical state of water?
Choose the correct alternative and rewrite the following:
Reaction of iron nails whith copper sulphate solution is an example of _____________________
Calcium floats over water during the reaction with water. Give reason.
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Tungsten wire is used in electric bulbs.
