THERE is an increasing tendency on the part of organic chemists to apply the Berzelius dualistic theory, in a modified form, to organic compounds. In many theories of valency, individual groups are ...

(b) Non-polar covalent compounds are [good/bad] conductors of heat and electricity. (e) Higher the pH value of a solution, the more [acidic/alkaline] it is. (d) [Silver chloride / Lead chloride] is a ...