Chemical reaction and equations worksheet-4

Chemical reaction and equations worksheet-4

 

Multiple Choice Questions:

  1. What is the chemical formula of -Nickel ion and Carbonate ion.

(A) Ni+CO3         (B) Ni+CO32–        (C) Ni2+CO32–       (D) Ni4+CO33–

 

  1. What is the chemical formula of  -Ammonium ion and oxide ion

(A) NH4 O2        (B) NH3 O22–       (C) NH4+ O2        (D) NH4+ O2

(E) NH4+ O2–

 

  1. What is  the chemical formula of- Zinc nitrate

(A) Zn(NO3)2        (B) ZnNO3            (C) Zn2(NO3)3       (D) Zn(NO3)3

(E) None

 

  1. What is the chemical formula of -Ammonium chloride

(A) NH4Cl2            (B) (NH4)2Cl         (C) NH4Cl3            (D) NH4Cl

 

  1. What is the chemical  formula of -Mercuric chloride

(A) HgCl2              (B) Hg2Cl2             (C) HgCl               (D) None

 

  1. What will be the coefficients on the reactant and product side in the balanced chemical equation of  given chemical equation

Al + Fe2O3 → Al2O3 + Fe                  (A) 2Al, Fe2O3, Al2O3, 2Fe

(B) Al, Fe2O3, Al2O3, 2Fe                  (C) 2Al, Fe2O3, Al2O3, Fe

(D) 2Al, 2Fe2O3, Al2O3, 2Fe

 

  1. What will be the coefficients on the reactant and product side in the balanced chemical equation of  given chemical equation

SO2 + H2S → H2O + S

(A) SO2, H2S, 2H2O, 3S                    (B) SO2, 2H2S, 2H2O, 3S

(C) SO2, 2H2S, H2O, 3S                     (D) SO2, 2H2S, 2H2O, S

 

  1. What will be the coefficients on the reactant and product side in the balanced chemical equation of  given chemical equation

(A)

(B)

(C)

(D)

 

  1. Complete the equation, what type of reaction it is : Mg + ZnSO4

(A) Mg(SO4)2 + Zn, combination reaction

(B) Mg2SO4 + Zn, displacement reaction

(C) MgSO4 + Zn2, oxidation reaction

(D) MgSO4 + Zn, displacement reaction

 

  1. Complete and balance the chemical equation-

(A)

(B)

(C)

(D)

 

Answer keys:

  1. (C)

  2. (A) Super oxide ion (O2) , per oxide ion (O–1) and oxide ion O2–

  3. (A) Valency of Zinc is 2 and of nitrate ion (NO3)–1 is 1.

  4. (D) Valency of ammonium ion is 1 and chloride ion is 1.

  5. (A) Valency of mercurous ion is 1, mercuric ion is 2 and chloride ion is 1. Mercurous chloride is Hg2Cl2

  6. (A)

  7. (B)

  8. (A)

  9. (D)

  10. (B) It is a decomposition reaction.