a)
Interpretation : Whether the given reaction is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be predicted.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
During this reaction, one reactant is oxidised and the other reactant is reduced.
a)
Answer to Problem 33A
The given reaction is an example of oxidation-reduction reaction.
Explanation of Solution
Oxygen in the hydrogen peroxide oxidises into pure oxygen and reduced into water.
Hence, both oxidation and reduction reactions are taking place and same atom is undergoing both oxidation and reduction.
b)
Interpretation : Whether the given
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
b)
Answer to Problem 33A
The reaction does not take place.
Explanation of Solution
In the given reaction, copper reacts with sulphuric acid to form copper sulphate and hydrogen gas which is not a possible reaction.
The possible reaction between Cu and sulphuric acid is as follows:
c)
Interpretation : Whether the given chemical reaction is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be determined.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
c)
Answer to Problem 33A
The given reaction is an example of acid-base reaction.
Explanation of Solution
When sodium hydroxide aqueous solution reacts with aqueous sulphuric acid, then neutralization reaction takes place and form salt and water.
Hence, it is an example of acid-base reaction.
d)
Interpretation : Whether the given chemical reaction is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be determined.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
d)
Answer to Problem 33A
The given reaction is an example of both acid-base and precipitation reaction.
Explanation of Solution
Sulphuric acid on reaction with the base barium hydroxide, forms the salt barium sulphate which is a white precipitate in water.
Hence, this reaction is an example of both acid-base reaction in which precipitation occurs.
e)
Interpretation : Whether the given chemical reaction whether is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be determined.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
e)
Answer to Problem 33A
The given reaction is an example of precipitation reaction.
Explanation of Solution
On reaction of silver nitrate solution with copper chloride solution, a pale yellow precipitate of silver chloride is formed.
f)
Interpretation : Whether the given chemical reaction whether is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be determined.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
f)
Answer to Problem 33A
The given reaction is an example of precipitation reaction.
Explanation of Solution
During the reaction of potassium hydroxide with copper sulphate, a precipitate of copper hydroxide is formed.
This reaction is an example of precipitation reaction.
g)
Interpretation : Whether the given chemical reaction whether is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be determined.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
g)
Answer to Problem 33A
The given reaction is an example of oxidation-reduction reaction.
Explanation of Solution
Chlorine gas is being oxidised by losing electrons and fluorine is being reduced by gaining electrons from chlorine.
Hence, both oxidation and reduction are taking place during this reaction.
This reaction is an example of oxidation-reduction reaction.
(h)
Interpretation : Whether the given chemical reaction whether is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be determined.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
(h)
Answer to Problem 33A
The given reaction is an example of oxidation-reduction reaction.
Explanation of Solution
During this reaction, nitrogen is being oxidised by losing electrons and oxygen is being reduced by gaining electrons.
Hence, this reaction is an example of oxidation-reduction reaction.
(i)
Interpretation : Whether the given chemical reaction whether is a precipitation reaction or acid-base reaction or oxidation and reduction reaction needs to be determined.
Concept Introduction : During double displacement reaction certain ionic solutions produce undissolved solid residue called precipitate.
Such reactions are called precipitation reactions.
During acid base reaction, acid reacts with base and form salt and water. These reactions are called neutralization reactions.
Oxidation-reduction reactions or displacement reactions are the one in which highly reactive metal displaces the less reactive metal from its compound.
During this reaction, one reactant is oxidised and the other reactant is reduced.
(i)
Answer to Problem 33A
The given reaction is an example of acid-base reaction.
Explanation of Solution
Base calcium hydroxide reacts with nitric acid and form salt calcium nitrate and water.
This is an example of neutralization reaction.
In this reaction both acid and base are reacting together, so it is an example of acid-base reaction.
Chapter 8 Solutions
World of Chemistry
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