Which among the following is(are) double disp | vedclass

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

Question

(A) double displacement reaction is a chemical reaction where two reactant ionic compounds exchange ions to form two new products.Analysis of the give

Vedclass · Accepted Answer

$(ii)$ only

Vedclass · Answer

(A) double displacement reaction is a chemical reaction where two reactant ionic compounds exchange ions to form two new products.Analysis of the given reactions:$(i)$ $Pb + CuCl_2 \longrightarrow PbCl_2 + Cu$: This is a displacement reaction where $Pb$ displaces $Cu$.$(ii)$ $Na_2SO_4 + BaCl_2 \longrightarrow BaSO_4 + 2NaCl$: This is a double displacement reaction where $Na^+$ and $Ba^{2+}$ ions exchange places.$(iii)$ $C + O_2 \longrightarrow CO_2$: This is a combination reaction.$(iv)$ $CH_4 + 2O_2 \longrightarrow CO_2 + 2H_2O$: This is a combustion reaction.Therefore,only reaction $(ii)$ is a double displacement reaction.

Which among the following is(are) double displacement reaction$(s)$?
$(i)$ $Pb + CuCl_2 \longrightarrow PbCl_2 + Cu$
$(ii)$ $Na_2SO_4 + BaCl_2 \longrightarrow BaSO_4 + 2NaCl$
$(iii)$ $C + O_2 \longrightarrow CO_2$
$(iv)$ $CH_4 + 2O_2 \longrightarrow CO_2 + 2H_2O$

Similar Questions

Name the type of reaction for the following:
$(i)$ Silver items turning black when left exposed to air.
$(ii)$ Change in colour of copper sulphate from blue to green on dipping an iron nail in it.

Ferrous sulphate decomposes with the evolution of a gas having a characteristic odour of burning sulphur. Write the chemical reaction involved and identify the type of reaction.

On heating blue coloured powder of copper $(II)$ nitrate in a boiling tube,copper oxide (black),oxygen gas and a brown gas $X$ is formed.
$(a)$ Write a balanced chemical equation of the reaction.
$(b)$ Identify the brown gas $X$ evolved.

Translate the following statement into a chemical equation and balance it:
$(a)$ Aluminium chloride reacts with ammonium hydroxide to form a gelatinous white precipitate of aluminium hydroxide and a salt of ammonium chloride.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Which among the following is(are) double displacement reaction$(s)$?$(i)$ $Pb + CuCl_2 \longrightarrow PbCl_2 + Cu$$(ii)$ $Na_2SO_4 + BaCl_2 \longrightarrow BaSO_4 + 2NaCl$$(iii)$ $C + O_2 \longrightarrow CO_2$$(iv)$ $CH_4 + 2O_2 \longrightarrow CO_2 + 2H_2O$