In the Refining of Silver, the Recovery of Silver from Silver Nitrate Solution Involved Displacement by Copper Metal. Write Down the Reaction Involved. - Science

Short Note

In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.



\[\ce{2AgNO3_{(aq)} + Cu_{(s)} -> 2Ag_{(s)} + Cu(NO3)2_{(aq)}}\]

\[\ce{Silver Nitrate + Copper → Silver + Copper Nitrate}\]

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Chapter 1: Chemical Reactions and Equations - Exercise 2 [Page 45]


Lakhmir Singh Class 10 Chemistry (Science)
Chapter 1 Chemical Reactions and Equations
Exercise 2 | Q 14 | Page 45
NCERT Science Class 10
Chapter 1 Chemical Reactions and Equations
Exercises | Q 14 | Page 16


Reaction of iron nails with copper sulphate solution is an example of
(a) Combination reaction
(b) Decomposition reaction
(c) Displacement reaction
(d) Double displacement reaction

CuSO4(aq) + Zn(s)  ZnSO4(aq) + Cu(s) is an example of a decomposition reaction.

The reddish brown deposit formed on iron nails kept in a solution of copper sulphate is

  1. Cu2O
  2. Cu
  3. CuO
  4. CuS

What happens when dilute hydrochloric acid is added to iron fillings? Tick the correct answer.

Why does the colour of copper sulphate solution change when an iron nail is kept immersed in it?

What type of chemical reaction is represented by the following equation?

A2O3 + 2B → B2O3 + 2A


What type of reaction is represented by the following equation?

Mg + CuSO4 → MgSO4 + Cu

What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.

Fill in the blank.

The chemical change involving iron and hydrochloric acid illustrates a ...............reaction.

Classify the following reactions as decomposition, Also balance the equations.

(A) \[\ce{CaCO3(s)->[heat]CaO(s)+CO2(g)}\]

(B) Zn(s) +`"H"_2"SO"_4`  `→`  `"ZnSO"_4` (S) + `"H"_2` (g) 

(C) `"AgNO"_3` (aq)  + NaCI (aq) `→` Ag CI (S) + `"NaNO"_3` 

(D) `"NH"_3` (g) + HCI (g)  `→` `"NH"_4` CI (S)
(E) `"CuSO"_4` (aq)  + `"H"_2"S"` (g)  `→` CuS (S) + `"H"_2"SO"_4` (I)

(F) Zn (S) + `"CuSO"_4` (aq)  `→` `"ZnSO"_4` N  (aq) + Cu  (s) 

(g) \[\ce{Ca(s)O2(g)->[heat]CaO(s)}\]

(H) NaOH + HCI  `→` NaCI + `"H"_2"O"` 

(I) KOH + `"H"_2"SO"_4`  `→` `"K"_2"SO"_4`  + `"H"_2"O"`  

Explain the following types of chemical reactions giving two examples for each of them displacement reaction.

Name the type of reaction which is governed by the position of a metal in the metal activity series ?

Explain the terms with examples.

Displacement reaction

i) Observe the following reaction and answer the following questions.
`CuSO_4 (aq) + Fe (s) →  FeSO_4(aq) + Cu (s)`
a) Identify and write the type of chemical reaction.
b) Write the definition of above reaction.

Identify the type of reaction taking place in the following case and write the balanced chemical equation for the reaction.
Zinc reacts with silver nitrate to produce zinc nitrate and silver.

Classify the following reaction into different type:

AgNO3(aq) + NaCl(aq) →AgCl(s) + NaNO3(aq)

Give reasons for the following:
The reaction of iron (III) oxide [Fe2O3] with heated aluminum is used to join cracked machine parts.

Classify the following reaction into – 

  1. Direct combination 
  2. Decomposition
  3. Displacement
  4. Double decomposition

The reaction is – Zinc reacts with copper [II] sulphate to give zinc sulphate and copper.

Give a balanced equation for –

A displacement reaction involving a metal above hydrogen in the activity series with copper [II] sulphate solution

Select the correct answer for the statement given below:

The displaced product of the displacement reaction of sodium with cold water.

  • Complete the given chemical reaction:
    \[\ce{CuSO4_{(aq)} + Fe_{(s)} ->}\] _______ + _______
  • Name the type of the reaction.

A single displacement reaction is represented by X(s) + 2HCl(aq) → XCl2(aq) + H2(g). Which of the following(s) could be X.

(i) Zn

(ii) Ag

(iii) Cu

(iv) Mg.

Choose the best pair. 

Match the following

Identify the types of reactions.

NH4OH(aq) + CH3COOH(aq) → CH3COONH4(aq) + H2O(l) Single Displacement
Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) Combustion
\[\ce{ZnCO3_{(s)} + ->[Heat]ZnO_{(s)} + CO2_{(g)}}\] Neutralization
C2H4(g) + 4O2(g) → 2CO2(g) + 2H2 O(g) + Heat Thermal decomposition

Which of the following is a displacement reaction?

Identify the type of chemical reaction given below:

\[\ce{CuSO4 + Fe -> FeSO4 + Cu}\]

Complete the following chemical reaction:

\[\ce{CuSO4 (aq) + Pb (s) -> \underline{}\underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}\underline{}}\]

Name the chemical reaction type.

Complete the given chemical equation:

\[\ce{Zn(s) + CuSO4(aq) -> \underline{}\underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}\underline{}}\]

Name the type of reaction.

Consider the following chemical equation I and II

  1. \[\ce{Mg + 2HCl -> MgCl_2 +H_2}\]
  2. \[\ce{NaOH +HCl -> NaCl + H_2O}\]

The correct statement about these equations is:


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