2HNO₃ + Ca(OH)₂ → Ca(NO₃)₂ + 2H₂O; is an example of
(i) Displacement reaction
(ii) Double displacement reaction
(iii) Neutralization reaction
(iv) Combination reaction.

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(i) and (ii)

(ii) and (iii)

(i) and (iv)

(iii) and (iv)

answer is B.

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Detailed Solution

A double displacement reaction is a type of chemical reaction where two compounds react, and positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

Double displacement reaction are of two types they are Precipitation reaction and neutralization reaction. x

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