• 072920 77839
  • info@smartachievers.in
Menu
Back
  • JEE ADVANCE
  • JEE MAIN
  • NEET
  • BITSAT
  • CBSE BOARD
  • UP BOARD
  • CUET
JEE ADVANCE
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
JEE MAIN
  • CLASS XI - XII
  • CRASH COURSE
CRASH COURSE
NEET
  • CLASS XI - XII
  • CRASH COURSE
BITSAT
  • CLASS XI - XII
CBSE BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
  • CLASS VI
  • CLASS VII
  • CLASS VIII
UP BOARD
  • CLASS IX
  • CLASS X
  • CLASS XI
  • CLASS XII
CUET
  • CRASH COURSE
Courses


Solution


Q.

Match List I with List II. 

 

List I (Reaction)

  

List II (Type of redox reaction)
A. N2(g)+O2(g)→2NO(g) I. Decomposition
B. 2Pb(NO3)2(s)→2PbO(s)+4NO2(g)+O2(g) II. Displacement
C. 2Na(s)+2H2O(l)→2NaOH(aq.)+H2(g) III. Disproportionation
D. 2NO2(g)+2OH(aq.)-→NO2(aq.)-+NO3(aq.)-+H2O(l) IV. Combination

 

Choose the correct answer from the options given below:                 [2024]
1 (A)-(I), (B)-(II), (C)-(III), (D)-(IV)  
2 (A)-(III), (B)-(II), (C)-(I), (D)-(IV)  
3 (A)-(II), (B)-(III), (C)-(IV), (D)-(I)  
4 (A)-(IV), (B)-(I), (C)-(II), (D)-(III)  

Ans.

(4)

(A) A reaction in which reactants combine into single product is called a combination reaction.

     N2(g)+O2(g)→2NO(g) is a combination reaction

(B) Reactions in which a reactant dissociates into more than one products are called decomposition reactions.

      2Pb(NO3)2(s)→2PbO(s)+4NO2(g)+O2(g) is a decomposition reaction.

(C) Reactions in which one element displaces another element from a compound are called displacement reactions.

       2Na(s)+2H2O(l)→2NaOH(aq)+H2(g) is a displacement reaction. In this reaction, H+ in H2O is displaced by Na+.

(D) Reactions in which same element undergoes oxidation and reduction are disproportionation reactions.