If a compound has a number of individual dipoles, then:

(i) it is polar overall.
(ii) there is an electronegativity difference between the bonded atoms.
(iii) it is ionic.
(iv) it doesn't have resonance.

(a) ii only
(b) ii, iv
(c) i, ii, iv
(d) i, iii
(e) all of the above statements are correct.

alfred von schlieffen, german army chief of staff, was given instructions to devise a strategy that would be able to counter a joint attack. in december, 1905, he began circulating what later became known as the schlieffen plan. schlieffen argued that if war took place it was vital that france was speedily defeated.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.