The reaction, Zn + 2HCl → ZnCl2 + H2 is an example of:
Double displacement reaction
Combination reaction
Decomposition reaction
Displacement reaction
Zinc displaces hydrogen from hydrochloric acid so, its a displacement reaction.
NaCl + AgNO3 → AgCl + NaNO3 is an example of:
The reaction given below is an example of: Ba(OH)2(s)+2CuCNS(s)→Ba(CNS)2(aq)+2CuOH(s)
BaCl2+H2SO4→BaSO4↓+2HCl. The reaction given above is an example of: