Chemistry
(i) Balance each of the following chemical equations :
FeCl3 + NH4OH ⟶ NH4Cl + Fe(OH)3
Zinc + Nitric acid ⟶ Zinc nitrate + Nitrogen dioxide + Water
(ii) Identify the substance which matches the description given below:
- White crystalline substance which sublimes on heating.
- The metal that cannot displace hydrogen from dilute hydrochloric acid.
Related Questions
What do you observe when :
(i) Ammonium chloride crystals are heated in a test tube ?
(ii) Iron nails are added to copper sulphate solution ?
(iii) Lead nitrate crystals are heated strongly?
(iv) Silver nitrate solution is mixed with sodium chloride solution?
(v) Blue copper sulphate crystals are heated ?
(i) Define : Relative atomic mass.
(ii) Why is it necessary to balance a chemical equation ?
(iii) Calculate the percentage of nitrogen in ammonium phosphide. (At.wt. : N = 14, P = 31, O = 16)
Define or explain the following terms :
(i) Absolute temperature
(ii) Valency
(iii) Ozone depletion
(iv) Electrovalent bond
(v) Atom
The formula of the chloride of the metal 'M' is MCl3. State the formula of its:
(i) Carbonate
(ii) Hydroxide