Question

What is double displacement reaction ??​

Answer 1

♛The reaction in which the reactants exchange their ions and one of the insoluble product formed is called precipitate.

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⭐AB + CD → AD + CB

⭐It is also known as precipitation reaction.

⭐Precipitation :- The insoluble substance formed in reaction is called precipitates.

Ex:-

NaHCO3 + CH3COOH(aq) → H2CO3 + NaCH3COO

Pb(NO3)2(aq) + 2 KI(aq) → 2 KNO3(aq) + PbI2(s)

BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2 NaCl(aq)

AgNO3 + NaCl → AgCl + NaNO3

Answer 2

Thereactioninwhichthereactantsexchangetheirionsandoneoftheinsolubleproductformediscalledprecipitate

AB+CD->AC+BD

Hope it helps u