How Do Metal React with Solution of Other Metal Salts

Q.

What happens when iron nails are put into copper sulphate solution?

Q.

How can we balance the following.

when a strip of copper metal is placed in a solution of silver nitrate, metallic silver is precipitated and a solution containing copper nitrate is formed.

Can you explain it with steps

Write the reactants and the products in equation form

Q.

A zinc plate was kept in a glass container having $CuS{O}_4$ solution. On examining it was found that the blue colour of the solution is getting 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.

Q.

How wouild you show that silver is chemically less reactive than copper?

Q.

Metals like iron, copper, aluminium and zinc are given to a student. The correct decreasing order of reactivity of these metals written by the student is:

1. Zn > Fe > Al > Cu

2. Zn > Al > Fe > C

3. Al > Zn > Fe > Cu

4. Fe > Cu > Al > Zn

Q.

What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?

Q. Why does Cu not liberate H2 on reacting with dilute sulphuric acid?

Q. how does the reactivity series of metals help in predicting the relative activities of various metals

Q.

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

Q.

A copper coin is kept immersed in a solution of silver nitrate for some time. What will happoen to the coin and the colour of the solution?

Q.

An ore on treatment with dilute HCl gives a smell like that of rotten eggs. What type of ore is it? Give equations and explain the operation required to obtain metal from its ore.

Q.

What will happen if a strip of zinc is immersed in a solution of copper sulphate?

Q. Why only magnesium and manganese metal give Hydrogen gas when treated with dil. Nitric acid?
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Q.

In a solution of lead acetate, a strip of metal M was dipped. After some time, lead from the solution was deposited on the metal strip. Which metal is more reactive, M or lead?

Q. And ore on treatment with dilute hydrochloric acid produces brisk effervescence. What type of ore is this? Write the steps required to obtain metal from then restore

Q. How is an acid prepared from a non-metal and a base from a metal? Give equation.

Q.

Aluminium metal displaces manganese from manganese ($\mathrm{IV}$) oxide giving manganese and aluminium oxide. Which is more reactive: manganese or aluminium?

Q.

Which of the following metals comes above zinc in reactivity series ?

1. Copper

2. Silver

3. Aluminium

4. Iron

Q.

Question 46
A metal A, which is used in thermite process, when heated with oxygen gives an oxide B, which is amphoteric in nature. Identify A and B. Write down the reactions of oxide B with HCl and NaOH.

Q.

A utensil made of brass was kept in a kitchen. After some days, the utensils lost its lustre due to the formation of a greenish layer on it. What could be the cause for this?

Q.

Which alloy of aluminium is used for making aircrafts

1. Alnico

2. Y-Alloy

3. Duralumin

4. Aluminium Bronze

Q. ${\text{H}}_2$ gas is evolved when iron is added to dil. ${\text{H}}_2{\text{SO}}_4$ and not when copper is added to dil. ${\text{H}}_2{\text{SO}}_4$.

1. True
2. False

Q.

Zinc sulfate forms a colorless solution in water. Will you observe any colour on adding copper turning in it?

Q.

A, B, and C are three elements which undergo chemical reactions according to the following equations.

$$\begin{gathered} A_2{O}_3+2B\to B_2{O}_3+2A \\ 3CS{O}_4+2B\to B_2{\left(S{O}_4\right)}_3+3C \\ 3CO+2A\to A_2{O}_3+3C \end{gathered}$$

1. Which element is the most reactive?
2. Which element is the least reactive?

Q. Which of the following metals can replace copper from $CuS{O}_4$?

1. Iron
2. Magnesium
3. Aluminium
4. Sodium
5. Calcium
6. Gold
7. Platinum
8. Silver

Q. The green coloured coating that develops on a copper rod when it is left in open for some days, is of .

1. copper sulphate
2. copper chloride
3. copper hydride
4. copper carbonate

Q. In the following reaction, identify the products
$Cu+FeS{O}_4\to$

1. $X-FeS{O}_4;Y-CuS{O}_4$
2. $X-Fe;Y-Cu$
3. Reaction cannot happen
4. $X-Fe;Y-CuS{O}_4$

Q.

A more reactive metal displaces a less reactive metal from the aqueous solution. From the following set tell which one represents a correct picture, of both the possible (√) reaction and impossible (x) reactions between metals and the solution of different salts.

1. 

2. 

3. 

4. 

Q.

State whether the statement is true or false.

"The image shows iron nail dipped in copper sulphate solution. Reaction takes place and some time later, iron sulphate is observed in the solution. In this reaction gold nail can also be used instead of iron."

Q.

Which of the following reactions will not occur ? Why not?
(a)$MgS{O}_4\left(aq\right)+Cu\left(s\right)⟶CuS{O}_4\left(aq\right)+Mg\left(s\right)$
(b) $CuS{O}_4\left(aq\right)+Fe\left(s\right)⟶FeS{O}_4\left(aq\right)+Cu\left(s\right)$
(c) $MgS{O}_4\left(aq\right)+Fe\left(s\right)⟶FeS{O}_4\left(aq\right)+Mg\left(s\right)$