Chemistry
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compounds.
(a) Barium sulphate
(b) Bismuth nitrate
(c) Calcium bromide
(d) Ferrous sulphide
(e) Chromium sulphate
(f) Calcium silicate
(g) Stannic oxide
(h) Sodium zincate
(i) Magnesium phosphate
(j) Sodium thiosulphate
(k) Stannic phosphate
(l) Nickel bisulphate
(m) Potassium manganate
(n) Potassium ferrocyanide
Answer
| S. No. | Compound | Basic radical | Acidic radical | Formula |
|---|---|---|---|---|
| a | Barium sulphate | Ba2+ | SO42- | BaSO4 |
| b | Bismuth nitrate | Bi3+ | NO3- | Bi(NO3)3 |
| c | Calcium bromide | Ca2+ | Br- | CaBr2 |
| d | Ferrous sulphide | Fe2+ | S2- | FeS |
| e | Chromium sulphate | Cr3+ | SO42- | Cr2(SO4)3 |
| f | Calcium silicate | Ca2+ | SiO32- | CaSiO3 |
| g | Stannic oxide | Sn4+ | O2- | SnO2 |
| h | Sodium zincate | Na1+ | ZnO22- | Na2ZnO2 |
| i | Magnesium phosphate | Mg2+ | PO43- | Mg3(PO4)2 |
| j | Sodium thiosulphate | Na1+ | S2O32- | Na2S2O3 |
| k | Stannic phosphate | Sn4+ | PO43- | Sn3(PO4)4 |
| l | Nickel bisulphate | Ni2+ | HSO4- | Ni(HSO4)2 |
| m | Potassium manganate | K1+ | MnO42- | K2MnO4 |
| n | Potassium ferrocyanide | K1+ | Fe(CN)64- | K4[Fe(CN)6] |
Related Questions
(a) What is a chemical formula ?
(b) What is the significance of a formula ? Give an example to illustrate.
What do you understand by the following terms ?
(a) Acid radical
(b) Basic radical
Give the names of the elements and number of atoms of those elements, present in the following compounds.
(a) Sodium sulphate
(b) Quick lime
(c) Baking soda
(d) Ammonia
(e) Ammonium dichromate
The valency of an element A is 4. Write the formula of its:
(a) oxide
(b) nitrate
(c) phosphate