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प्रश्न
What type of reaction is represented by the following equation?
\[\ce{2Na + 2H2O -> 2NaOH + H2}\]
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उत्तर
Displacement reaction
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संबंधित प्रश्न
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
\[\ce{Fe2O3 + 2Al -> Al2O3 + 2Fe}\]
The above reaction is an example of a ______.
What happens when dilute hydrochloric acid is added to iron fillings? Choose the correct answer.
Write the balanced chemical equation for the following and identify the type of reaction.
\[\ce{Magnesium(s) + Hydrochloric acid(aq) -> Magnesium chloride(aq) + Hydrogen(g)}\]
State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.
What type of chemical reaction is represented by the following equation?
\[\ce{A + BC -> AC + B}\]
What is meant by a displacement reaction? Explain with the help of one example.
What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.
A strip of metal X is dipped in a blue coloured salt solution YSO4. After some time, a layer of metal Y from the salt solution is formed on the surface of metal strip X. Metal X is used in galvanisation whereas metal Y is used in making electric wires. Metal X and metal Y together form an alloy Z.
- What could metal X be?
- What could metal Y be?
- Name the metal salt YSO4.
- What type of chemical reaction takes place when metal X reacts with salt solution YSO4? Write the equation of the chemical reaction involved.
- Name the alloy Z.
Explain the following type of chemical reaction, giving two examples for it:
Displacement reaction
Name the type of reaction which is governed by the position of a metal in the metal activity series ?
The colour of an aqueous solution of zinc sulphate as observed in the laboratory is:
(1) Green
(2) Yellow
(3) Blue
(4) Colourless
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.
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.
State the change in colour observed in following case mentioning the reason:
A piece of zinc is dipped in ferrous sulphate solution.
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.
