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Chemical Reactions and Equations

What is the difference between displacement and double displac

Science

Class 10

NCERT

Chapter 1: Chemical Reactions and Equations

34 questions

Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.

What is the difference between displacement and double displacement reactions? Write equations for these reactions?

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

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Question

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Solving time: 4 mins

What is the difference between displacement and double displacement reactions? Write equations for these reactions?

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Updated on: Mar 23, 2023

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Science (NCERT)

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Text solutionVerified

A single-replacement reaction is a chemical reaction in which one element is substituted for another element in a compound, generating a new element and a new compound as products.

For example,

2 H Cl (a q) + Z n (s) \to Z n C l_{2} (a q) + H_{2} (g)

is an example of a single-replacement reaction. The hydrogen atoms in

H Cl

are replaced by

Z n

atoms, and in the process a new element hydrogen is formed.

A double-displacement reaction occurs when parts of two ionic compounds are exchanged, making two new compounds. A characteristic of a double-replacement equation is that there are two compounds as reactants and two different compounds as products.

An example is

C u C l_{2} (a q) + 2 A g N O_{3} (a q) \to C u (N O_{3})_{2} (a q) + 2 A g Cl (s)

There are two equivalent ways of considering a double-replacement equation,either the cations are swapped, or the anions are swapped.

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Practice more questions from Science (NCERT)

Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.

What is the difference between displacement and double displacement reactions? Write equations for these reactions?

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

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Question Text	What is the difference between displacement and double displacement reactions? Write equations for these reactions?
Updated On	Mar 23, 2023
Topic	Chemical Reactions and Equations
Subject	Science
Class	Class 10
Answer Type	Text solution:1 Video solution: 214
Upvotes	20995
Avg. Video Duration	4 min