Name two metals which will displace hydrogen from dilute acids, and two metals which will not.
Name two metals which will displace hydrogen from dilute acids, and two metals which will not.
Metals that are more reactive than hydrogen displace it from dilute acids. For example: sodium and potassium. Metals that are less reactive than hydrogen do not displace it.
For example: copper and silver.
Similar Questions
Write equations for the reactions of
$(i)$ iron with steam
$(ii)$ calcium and potassium with water
Write equations for the reactions of
$(i)$ iron with steam
$(ii)$ calcium and potassium with water
Differentiate between metal and non-metal on the basis of their chemical properties.
Differentiate between metal and non-metal on the basis of their chemical properties.
You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.
You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.
Samples of four metals $A$, $B$, $C$ and $D$ were taken and added to the following solution one by one. The results obtained have been tabulated as follows.
Metal
Iron $(II)$ sulphate
Cooper $(II)$ sulphate
zinc sulphate
Silver nitrate
$A.$
No reaction
Displacement
$B.$
Displacement
No reaction
$C.$
No reaction
No reaction
No reaction
Displacement
$D.$
No reaction
No reaction
No reaction
No reaction
Use the Table above to answer the following questions about metals $A$, $B$, $C$ and $D$.
$(i)$ Which is the most reactive metal ?
$(ii)$ What would you observe if $B$ is added to a solution of Copper $(II)$ sulphate ?
$(iii)$ Arrange the metals $A$, $B$, $C$ and $D$ in the order of decreasing reactivity.
Samples of four metals $A$, $B$, $C$ and $D$ were taken and added to the following solution one by one. The results obtained have been tabulated as follows.
| Metal | Iron $(II)$ sulphate | Cooper $(II)$ sulphate | zinc sulphate | Silver nitrate |
| $A.$ | No reaction | Displacement | ||
| $B.$ | Displacement | No reaction | ||
| $C.$ | No reaction | No reaction | No reaction | Displacement |
| $D.$ | No reaction | No reaction | No reaction | No reaction |
Use the Table above to answer the following questions about metals $A$, $B$, $C$ and $D$.
$(i)$ Which is the most reactive metal ?
$(ii)$ What would you observe if $B$ is added to a solution of Copper $(II)$ sulphate ?
$(iii)$ Arrange the metals $A$, $B$, $C$ and $D$ in the order of decreasing reactivity.
What would you observe when zinc is added to a solution of iron $(II) $ sulphate ? Write the chemical reaction that takes place.
What would you observe when zinc is added to a solution of iron $(II) $ sulphate ? Write the chemical reaction that takes place.