Which is an example of double displacement reaction? (a) NaSO4 + PbNO3 NaNO3 + PbSO4 (b) NaOH + HCl H2O + NaCl (c) Na2S +2HCl NaCl+ H2S (d) All of the above
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Answer:
option d all of these
Explanation:
because both the compounds are changing through the chemical reaction
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Answer:
Option (D) All of the above
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