Displacement and double displacement reaction

2,552 views 13 slides Apr 30, 2022
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About This Presentation

Explained about displacement and double displacement reaction.
Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.
In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds.


Slide Content

Class - X Physical science Chemical reaction and equation displacement and double-displacement reaction SWETA KUMARI 11808380 INTEGRATED BSC.BED. (4 TH YEAR) LOVELY PROFESSIONAL UNIVERSITY, PHAGWARA

Identify what is happening A is displacing B from the compound BC

what are you observing?

Displacement reaction Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.

Why does the iron nail become brownish in colour and the blue colour of copper sulphate solution fades?

When an iron nail is dipped in a solution of CuSO4, it displaces copper from the Solution, which gets deposited or precipitated as a red or red-brown residue. Also the blue colour of the solution gradually fades. So Fe displaces Cu to form Iron Sulphate and Copper.

what are you observing?

Double displacement reaction A double-displacement reaction is a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds.’ Example: Na2SO4 + BaCl2 → BaSO4 + 2NaCl

Q1. AB+CD → CB+AD Shows which type of reaction? a) Addition b) Combination c) Displacement d) Double-displacement Ans. Option (d)

Displacement reaction In a displacement reaction, a more reactive element replaces a less reactive element from a compound. In a displacement reaction, one displacement takes place. A + BX → AX + B Change in color takes place with no precipitate forms. Double displacement reaction In a double displacement reaction, two atoms or a group of atoms switch places to form new compounds. In a double displacement reaction, two displacements take place to complete the reaction. AB + CD → AC + BD Precipitate is formed .

2K+MgCl2→2KCl+Mg – Displacement reaction AgNO3+NaCl→AgCl+NaNO3 – Double displacement reaction Write examples of displacement and double displacement reaction, one each. (equation)

Tick the right option Q3. Which option denotes a double displacement reaction? (a)A + B + C (b) A + B → C (c) AC + BD → AD + BC (d) AC + B → AB + C Ans. Option C