मराठी

What Type of Reaction is Represented by the Following Equation? 2na + 2h2o → 2naoh + H2 - Science

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प्रश्न

What type of reaction is represented by the following equation?

2Na + 2H2O → 2NaOH + H2

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उत्तर

Displacement reaction

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Chemical Reactions and Equations - Exercise 2 [पृष्ठ ४६]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 1 Chemical Reactions and Equations
Exercise 2 | Q 20.2 | पृष्ठ ४६

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

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


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:

Cl+ 2KI → 2KCl + I2 


What type of reaction is represented by the following equation?

Mg + CuSO4 → MgSO4 + Cu


What happens when a zinc strip is dipped into a copper sulphate solution?
Name the type of reaction involved.


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 ?


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(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:

Zn + CuSO4 → ZnSO4 + Cu


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.


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:


The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.


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