____as element is present in sample like charcoal,paper and even in a precious stone like____.
_____compounds are carbon compounds which properties depend on the number of bonds formed.The ____bonds found in organic or carbon molecules are formed by ____ of electron pairs between atoms.The primary bond that holds between csrbon atoms is stigma bond,while the multiple bond(doublenor triple)formed by ____.
Atoms with four(4) or more valence electrons like carbon form as many bonds as they need electrons to fill their valence shells and thereby reach a stable____.
It is important to always count the number of bonds of each particular atom.Carbon should have ___ bonds.Hydrogen has only one(1) bond, oxygen with two(2) bonds,nitrogen could have____ bonds,and only one(1) bond for halogens.
Carbon,oxygen and nitrogen,with more than one bond,could possible formed ____ bond(double or triple bond).
