Question

Select (i) combination reaction (ii) decomposition reaction and (iii) displacement reaction from the following chemical equations :
(i) ZnCO3(s)--> ZnO(s) + CO,(g)
(ii) Pb(s) + CuCl2(aq)--1, PbCl2(aq) + Cu(s)
NaBr(aq) + AgNO3(aq)---). AgBr(s) + NaNO3(aq)
(iv) H2(g) + Cl(g) —> 2HC1(g)
(v) Pe203(g) + Al203 + 2Pe(s)
(vi) 3H2(g) N2(8)— 2N143(g)


CBSE Class X Science SA 2 (3 Marks)

Answer 1

Decomposition reaction (ii) Displacement reaction (iii) Double displacement reaction (iv) Combination reaction (v) Displacement reaction (vi) Combination reaction

Answer 2

Decomposition reaction (ii) Displacement reaction (iii) Double displacement reaction (iv) Combination reaction (v) Displacement reaction (vi) Combination reaction