Chemistry
Certain metals exhibit variable valencies which include valencies: 1+, 2+, 3+, & 4+. State the variable valency of the following metals -
(a) Copper
(b) Silver
(c) Mercury
(d) Iron
(e) Tin
(f) Lead
[write each symbol with the variable valency]
Related Questions
Explain the term 'variable valency'. Copper having electronic configuration 2, 8, 18, 1 exhibits variable valency. Give a reason for the same & name the compound CuCl & CuCl2.
State the valencies of the following metallic elements -
(a) Potassium
(b) Sodium
(c) Calcium
(d) Magnesium
(e) Zinc
(f) Aluminium
(g) Chromium
[write each symbol with the valency]
State which of the following ions or radicals given below of non-metallic elements exhibit valency: 1-, 2- & 3-
(a) Chloride
(b) Bromide
(c) Iodide
(d) Nitrate
(e) Hydroxide
(f) Bicarbonate
(g) Bisulphite
(h) Bisulphate
(i) Aluminate
(j) Permanganate
(k) Oxide
(l) Sulphide
(m) Sulphite
(n) Sulphate
(o) Carbonate
(p) Dichromate
(q) Zincate
(r) Plumbite
(s) Phosphate
(t) Nitride
[write each ion or radical with the correct valency]
Differentiate between the terms - 'Ion' & 'radical' with suitable examples.