Which of the following are combination reacti | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) combination reaction is a reaction in which two or more reactants combine to form a single product.$(i)$ $2 KClO_{3} \longrightarrow 2 KCl + 3O_{2

Vedclass · Accepted Answer

$(ii)$ and $(iii)$

Vedclass · Answer

(B) combination reaction is a reaction in which two or more reactants combine to form a single product.$(i)$ $2 KClO_{3} \longrightarrow 2 KCl + 3O_{2}$ is a decomposition reaction because one reactant breaks down into multiple products.$(ii)$ $MgO + H_{2}O \longrightarrow Mg(OH)_{2}$ is a combination reaction because two reactants combine to form a single product.$(iii)$ $4 Al + 3O_{2} \longrightarrow 2 Al_{2}O_{3}$ is a combination reaction because two reactants combine to form a single product.$(iv)$ $Zn + FeSO_{4} \longrightarrow ZnSO_{4} + Fe$ is a displacement reaction because $Zn$ displaces $Fe$ from its salt solution.Therefore,$(ii)$ and $(iii)$ are combination reactions.

Which of the following are combination reactions?
$(i)$ $2 KClO_{3} \xrightarrow{\text{Heat}} 2 KCl + 3O_{2}$
$(ii)$ $MgO + H_{2}O \longrightarrow Mg(OH)_{2}$
$(iii)$ $4 Al + 3O_{2} \longrightarrow 2 Al_{2}O_{3}$
$(iv)$ $Zn + FeSO_{4} \longrightarrow ZnSO_{4} + Fe$

Similar Questions

Write the essential condition for the following reaction to take place: $2 AgCl \rightarrow 2 Ag + Cl_{2}$ and write one use of this reaction.

On adding dilute hydrochloric acid to copper oxide powder,the solution formed is blue-green. Predict the new compound formed which imparts a blue-green colour to the solution.

In the electrolysis of water,why is the volume of gas collected over one electrode double that of the gas collected over the other electrode?

Complete the missing components/variables given as $x$ and $y$ in the following reactions:
$(a)$ $Zn(s) + H_2SO_4(aq) \longrightarrow ZnSO_4(x) + H_2(y)$
$(b)$ $CaCO_3(s) \xrightarrow{x} CaO(s) + CO_2(g)$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Which of the following are combination reactions?$(i)$ $2 KClO_{3} \xrightarrow{\text{Heat}} 2 KCl + 3O_{2}$$(ii)$ $MgO + H_{2}O \longrightarrow Mg(OH)_{2}$$(iii)$ $4 Al + 3O_{2} \longrightarrow 2 Al_{2}O_{3}$$(iv)$ $Zn + FeSO_{4} \longrightarrow ZnSO_{4} + Fe$