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Which of the following reactions given b...

Which of the following reactions given below are not examples of double displacement reactions ?
(I) ` Cu_((s)) + 2 AgNO_(3(aq)) to Cu(NO_(3))_(2(aq))+2 Ag_((s))`
(II) ` NaOH + HCl to NaCl + H_(2) O`
(III) `AlCl_(3(aq)) + 3 NH_(4) OH_((aq)) to Al (OH)_(3(s)) + 3 NH_(4) Cl_((aq))`
(IV) ` Pb (NO_(3))2 _((aq)) + 2 NaCl_((aq)) to 2 NaNO_(3(aq)) + Pb Cl_(2(s))`

A

Only (I)

B

Both (I) and (II)

C

Both (II) and (III)

D

(I), (II) and (IV)

Text Solution

Verified by Experts

The correct Answer is:
A
Those reactions in which there is exchange of ions between two compounds to form two new compounds are called double displacement reactions. Neutralization reaction or the reactions in which acids or acidic oxides (oxides of non metals) react with bases or basic oxides (oxides of metals) to form salt and water are also double displacement reactions. The reaction between copper and silver nitrate is a displacement reaction since a more reactive metal displaces a less reactive metal.
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