Question

[27]
Ques, 4-Correct the statement by changing the underline words:

[i] When electricity is passed through acidified water, it decomposes to give hydrogen and
carbon dioxide.

[ii] Neutralization reactions between acids and bases are endothermicreactions.

[iii] The most reactive metal is at the bottom of the activity series of metals.

[iv] An atom that gains one or more electrons to form a negative ion is called a cation.

[v] Acidic oxides that are dissolved in water turn red litmus blue​

Answer 1

Answer:

i) When electricity is passed through acidified water it decomposes to give hydrogen and oxygen.

ii) Neutralization reaction between acids and bases is highly exothermic.

iii) The most unreactive metal is at the bottom of the activity series of metals( I don't know the underlined word so according to that write the ans)

OR

The most reactive metal is at the top of the activity series of metals.

iv) An atom that gains one or more electrons to form a negative ion is called an anion.

v) P2O5 when dissolved in water turns red litmus blue.

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