Question

Match the following reactions:-

$\begin{array}{cccc}& \text{Reaction Names}& & \text{Reactions}\\ \text{i}& \text{Displacement reaction}& & {\text{A. CaO + O}}_2\to {\text{2Ca(OH)}}_2\\ \text{ii}& \text{Decomposition Reaction}& & {\text{B. Fe + Pb(NO}}_3{)}_2\to {\text{Fe(NO\_3)}}_2\text{+ Pb}\\ \text{iii}& \text{Redox Reaction}& & {\text{C. MgCl}}_2{\text{+ Ca(OH)}}_2\to {\text{Mg(OH)}}_2{\text{+ CaCl}}_2\\ \text{iv}& \text{Combination Reaction}& & {\text{D. KClO}}_3\to {\text{2KCl + 3O}}_2\\ \text{v}& \text{Double Displacement Reaction}& & {\text{E. CO}}_2{\text{+ H}}_2\to {\text{2CO + H}}_2\text{O}\end{array}$

• A. i - B, ii - D, iii - E, iv - A and v - C
• B. i - B, ii - E, iii - D, iv - A and v - C
• C. i - A, ii - E, iii - F, iv - B and v - C
• D. i - A, ii - F, iii - E, iv - B and v - C

Answer 1

The correct option is A

i - B, ii - D, iii - E, iv - A and v - C

$\begin{array}{ccc}\text{S.No.}& \text{Reaction Names}& \text{Reactions}\\ \text{i}& \text{Displacement Reaction (element displacing}& {\text{B. Fe + Pb(NO}}_3{)}_2\to {\text{Fe(NO}}_3{)}_2\text{+ Pb}\\ & \text{other element from its compound)}& \\ \text{ii}& \text{Decomposition Reaction (single product}& {\text{D. KClO}}_3\to {\text{2KCl + 3O}}_2\\ & \text{decomposing into two or more than two products)}& \\ \text{iii}& \text{Redox Reaction (both oxidising and reducing)}& {\text{E. CO}}_2{\text{+ H}}_2\to {\text{2CO + H}}_2\text{O}\\ \text{iv}& \text{Combination Reaction (two reactants combine}& {\text{A. CaO + O}}_2\to {\text{2Ca(OH)}}_2\\ & \text{to give a single product)}& \\ \text{v}& \text{Double Displacement Reaction (exchange of}& {\text{C. MgCl}}_2{\text{+ Ca(OH)}}_2\to {\text{Mg(OH)}}_2{\text{+ CaCl}}_2\\ & \text{ions between reactions)}& \end{array}$