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प्रश्न
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.
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उत्तर
a) displacement reaction.
b) The reaction in which the place of the ion of a less reactive element in a compound is taken by another more reactive element by formation of its own ions, is called displacement reaction.
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संबंधित प्रश्न
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
- Cu2O
- Cu
- CuO
- CuS
Write the balanced chemical equation for the following and identify the type of reaction.
\[\ce{Magnesium(s) + Hydrochloric acid(aq) -> Magnesium chloride(aq) + Hydrogen(g)}\]
What type of chemical reaction is represented by the following equation?
A + BC → AC + B
What type of chemical reaction is represented by the following equation?
A2O3 + 2B → B2O3 + 2A
what type of reaction is the following:
Cl2 + 2KI → 2KCl + I2
What type of reaction is represented by the following equation?
2Na + 2H2O → 2NaOH + H2
What type of reaction is represented by the following equation?
Mg + CuSO4 → MgSO4 + Cu
What is meant by displacement reaction, Explain with help of one example.
What happens when a zinc strip is dipped into a copper sulphate solution?
Write the equation for the reaction that takes place.
What happens when a zinc strip is dipped into a copper sulphate solution?
Name the type of reaction involved.
When a strip of red-brown metal X is placed in a colourless salt solution YNO3 then metal Y is set free and a blue coloured salt solution X(NO3)2 is formed. The liberated metal Y forms a shining white deposit on the strip of metal X.
(a) What do you think metal X is?
(b) Name the salt YNO3.
(c) What could be metal Y?
(d) Name the salt X(NO3)2.
(e) What type of reaction takes place between metal X and salt solution YNO3?
Fill in the blank.
The chemical change involving iron and hydrochloric acid illustrates a ...............reaction.
Name the type of reaction which is governed by the position of a metal in the metal activity series ?
To show that zinc is a more active metal than copper, the correct procedure is to:
(1) add dilute nitric acid on strips of both the metals.
(2) observe transmission of heat through strips of zinc and copper.
(3) prepare solution of zinc sulphate and hang strip of copper into it.
(4) prepare solution of copper sulphate and hang strip of zinc into it.
Explain the terms with examples.
Displacement reaction
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.
Give a balanced equation for –
A displacement reaction involving a metal above hydrogen in the activity series with copper [II] sulphate solution
- 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.
| REACTION | TYPE |
| 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 |
\[\ce{Pb + CuCl2 -> PbCl2 + Cu}\]
The above reaction is an example of:
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.
Consider the following chemical equation I and II
- \[\ce{Mg + 2HCl -> MgCl_2 +H_2}\]
- \[\ce{NaOH +HCl -> NaCl + H_2O}\]
The correct statement about these equations is:
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.
