Chemical reaction and equations worksheet-8

Chemical reaction and equations worksheet-8

 

One Word questions:

  1. NH4Cl is the formula of –

  2. N2 + 3H2 → 2NH3 What type of reaction is the given reaction?

  3. PbCl2 + H2S → PbS + 2HCl What type of reaction is the  given reaction?

  4. What is the name of HgS?

  5. What is the name of Mg(NO3)2?

  6. What is the name of K2SO4 ?

  7. What is the name of reactant which is in solid state in the given reaction?

Zn(s) + HCl(l) → ZnCl2(l) + H2(g)

  1. What type of reaction is the given reaction ?

  2. What type of reaction is the given reaction ?

P4(s) + 10Cl2(g) → 4PCl5

  1. What type of reaction is the given reactiobn ?

NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + H2O(l)

  1. What type of reaction is- 2KNO3(s) → 2KNO2(s) + O2(g)

  2. What type of reaction is - Zn(s) + 2AgNO3(aq) → Zn(NO3)2(aq) + 2Ag(s)

  3. What type of reaction is - Ni(NO3)2 + 2NaOH → Ni(OH)2 + 2NaNO3(aq)

  4. What type of reaction is - N2 + 3H2 → 2NH3

  5. BHT, BHA, vitamin E is added to food to ------------.

  6. This reaction is an example of- 2KClO3 → 2KCl(s) + 3O2(g)

  7. This reaction is an example of- 2HI → H2 + I2

  8. This reaction is an example of- Pb(NO3)2 + H2SO4 → Pb(NO3)2 + 2HNO3

  9. This reaction is an example of- MgO(s) + C(s) → MgO(s) + C(s)

  10. This reaction is an example of- P4(s) + 5O2(g) → 2P2O5(s)

 

Answer key:

  1. Ammonium chloride

  2. Combination reaction

  3. Double displacement Reaction

  4. Mercuric sulphide

  5. Magnesium nitrate

  6. Potassium sulphate

  7. Zinc

  8. Decomposition

  9. Combination reaction

  10. Neutralization reaction or Double displacement reaction

  11. Decomposition reaction

  12. Displacement reaction

  13. Double displacement Reaction

  14. Combination reaction

  15. To retard oxidation or To prevent rancidity.

  16. Decomposition reaction

  17. Decomposition reaction.

  18. Double displacement reaction

  19. Displacement reaction

  20. Combination reaction