KnowledgeBoat Logo

Chemistry

BASES — Ions present in bases     
a. Alkali — dissociates yielding hydroxyl ions     
16. Sodium hydroxideNaOH [aq.] ⇌ …………… + ……………
17. Ammonium hydroxideNH4OH [aq.] ⇌ …………… + ……………
b. Classification     
18. Monoacidic base [Acidity = 1 ]KOH [aq.] ⇌ …………… + ……………
19. Diacidic base [Acidity = 2]Cu(OH)2 [aq.] ⇌ …………… + ……………
c. Preparation of bases     
20. From metalsNa + O2 ⟶ ……………
21. From metallic oxides and metalsK2O + H2O ⟶ ……………
   K + H2O ⟶ …………… + ……………
22.From saltsAlCl3 + NaOH ⟶ …………… + …………… ↓
   FeSO4 + NaOH ⟶ …………… + …………… ↓
23. By thermal decompositionZnCO3 ⟶ …………… + …………… [g]
   Pb(NO3)2 ⟶ …………… + ……………[g] + ………….. [g]
c. Properties of bases     
24. Neutralizes acidsPbO + HNO3 ⟶ …………… + ……………
   Fe(OH)2 + HCl ⟶ …………… + ……………
Reaction with
25. Metallic salt solutionCuCl2 + NaOH ⟶ …………… + …………… ↓
   FeCl3 + NaOH ⟶ …………… + …………… ↓
26. Ammonium saltsNH4Cl + NaOH ⟶ …………… + …………… + …………… [g]
   NH4Cl + Ca(OH)2 ⟶ …………… + …………… + …………… [g]

Acids Bases Salts

36 Likes

Answer

BASES — Ions present in bases     
a. Alkali — dissociates yielding hydroxyl ions     
16. Sodium hydroxideNaOH [aq.] ⇌ Na+ + OH-
17. Ammonium hydroxideNH4OH [aq.] ⇌ NH4+ + OH-
b. Classification     
18. Monoacidic base [Acidity = 1 ]KOH [aq.] ⇌ K+ + OH-
19. Diacidic base [Acidity = 2]Cu(OH)2 [aq.] ⇌ Cu2+ + 2OH-
c. Preparation of bases     
20. From metals4Na + O22Na2O
21. From metallic oxides and metalsK2O + H2O ⟶ 2KOH
   2K + 2H2O ⟶ 2KOH + H2
22. From saltsAlCl3 + 3NaOH ⟶ 3NaCl + Al(OH)3
   FeSO4 + 2NaOH ⟶ Na2SO4 + Fe(OH)2
23. By thermal decompositionZnCO3ZnO + CO2 [g]
   2Pb(NO3)22PbO + 4NO2 [g] + O2 [g]
c. Properties of bases     
24. Neutralizes acidsPbO + 2HNO3Pb(NO3)2 + H2O
   Fe(OH)2 + 2HCl ⟶ FeCl2 + 2H2O
Reaction with
25. Metallic salt solutionCuCl2 + 2NaOH ⟶ 2NaCl + Cu(OH)2
   FeCl3 + 3NaOH ⟶ 3NaCl + Fe(OH)3
26. Ammonium saltsNH4Cl + NaOH ⟶ NaCl + H2O + NH3 [g]
   2NH4Cl + Ca(OH)2CaCl2 + 2H2O + 2NH3 [g]

Answered By

24 Likes


Related Questions