Double displacement and precipitation reactions

1. A.
   ‘I’ is a displacement reaction and ‘II’ is a decomposition reaction.
2. B.
   ‘I’ is a displacement reaction and ‘II’ is double displacement reaction.
3. C.
   Both ‘I’ and ‘II’ are displacement reactions.
4. D.
   Both ‘I’ and ‘II’ are double-displacement reactions.

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1. A.
   Endothermic Reaction
2. B.
   Exothermic Reaction
3. C.
   Double Displacement Reaction
4. D.
   Displacement Reaction

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1. A.
   $\mathrm{NaCl + AgNO_3 \rightarrow AgCl + NaNO_3}$
2. B.
   $\mathrm{CaO + H_2O \rightarrow Ca(OH)_2}$
3. C.
   $\mathrm{KNO_3 + H_2SO_4 \rightarrow KHSO_4 + HNO_3}$
4. D.
   $\mathrm{ZnCl_2 + H_2S \rightarrow ZnS + 2HCl}$

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1. A.
   (i) is double displacement, (ii) is displacement reaction.
2. B.
   Both, (i) and (ii) are displacement reactions and precipitation reactions.
3. C.
   Both, (i) and (ii) are double displacement reactions and precipitation reactions.
4. D.
   (i) is displacement, (ii) is double displacement reaction.

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