Question

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Answer 1

Answer:

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Answer 2

Answer:

1. Fe +CuSO4====>FeSO4 + Cu

Result => Iron displaces copper from copper sulphate solution and forms iron sulphate solution and copper. Because iron is more reactive than copper

2. This can be prepared by mixing hydrochloric acid (HCl) and sodium hydroxide (NaOH)

HCl + NaOH =====> NaCl + H2O (Water)

(Common

salt)

3. Reaction between acid and base forms salt and water. Here acid and base neutralize each other. Acid + Base ===> Salt + Water

Uses = 1. Different types of salts can be formed

2. Water can be obtained but can be

hazardous to consume

Examples = 1. HCl + NaOH ==> NaCl + H2O

2. H SO + 2KOH ==> K SO + 2H O

2 4 2 4 2

4. The reaction in which one element of higher

reactivity displaces the less reactive element

in the equation, is known as displacement

reaction. It is of two types single and double

displacement.

Uses = 1. This can be used to removed or get a

particular element from the solution.

2. Mainly used in chemistry labs.

Examples = 1. Fe + CuSO ===> FeSO + Cu

4 4

2. HCl + NaOH ==> NaCl + H O

2

Note : 1. In fourth question second example

hydrogen and sodium replaces each

other

2. Please mark brainliest