plz can you give me the answer of activity 2.13 & 2.14 of chapter 2 of ncert in class 10
Answers
salts acids bases
k2so4 H2so4 KOH
Na2so4 H2SO4 NaOH
Caso4 H2SO4 CaOH2
Mgso4 H2SO4 MgOH2
cuso4 H2SO4 CuOH2
Nacl HCL NaOH
NaNo3 HNO3 NaOH
Na2co3 H2CO3 NaOH
NH4cl HCL NH4OH
Answer:
Formula:
Potassium sulphate: K2SO4;
Sodium sulphate: Na2SO4;
Calcium sulphate: CaSO4;
Magnesium sulphate: MgSO4;
Copper sulphate: CuSO4;
Sodium chloride: NaCl;
Sodium nitrate: NaNO3;
Sodium carbonate: Na2CO3;
Ammonium chloride: NH4Cl.
Acids and bases which forms these salts:
When acids and bases mix, they react vigorously and form respective salt.
Acid + Base ———–> Respective salt
Example:
Sodium hydroxide + Nitric acid ———–> Sodium nitrite.
NaOH + HNO3 ————> NaNO3 + H2O
Acids used:
Sulphuric acid (H2SO4); Hydrochloric acid (HCl), Nitric Acid (HNO3), Carbonic acid (H2CO3).
Bases used:
Sodium Hydroxide (NaOH); Magnesium Hydroxide (Mg(OH)2); Calcium Hydroxide (Ca(OH)2).
Family:
Sodium salts: Sodium sulphate, Sodium chloride, Sodium nitrate, Sodium carbonate.
Similarly, we can group other salts as Potassium salts, magnesium salts, Ammonium Salts, Chloride salts, Sulphate salts, Nitrate salts etc.
hope this might help you