reactivity of pi bond

.5 kcal/mol more stable than ethylene (H h y d r o g = 30.3). Further, increasing the degree of substitution leads to further stability, and as a general rule alkenes follow this stability order:Tetrasubstituted>Trisubstituted>Disubstituted>Monosubstitut..

The halogen atom in haloalkane is very reactive and can be easily replaced by nucleophiles whereas the halogen atom in haloarenes is strongly held to the nucleus and cannot be replaced easily with nucleophile..

Nitrogen gas (dinitrogen) is chemically non-reactive at ordinary temperature due to: Its small atomic size. Its high bond order. The N-N bond in the N 2 molecule has a formal triple bond character. The dissociation constant is extremely small and ..

Nitrogen is a colorless gas and exists as diatomic. The two nitrogen atoms are held together by triple bond and have very high bond dissociation energy (945 kJ mol - 1 )...

Some important group trends are: (a) On account of high ionization enthalpies, simple M 4 + ions of the group are not known. (b) Unlike carbon the other elements of the group form compounds having coordination numbers higher than 4 like (SiF 5 ) - , (SiF 6 ) 2 - and (PbCl 6 ) 2 - . (c) In the dival..

Although there are more than hundred elements around us we do not find these elements in their native form in nature. This is because most of these elements are highly reactive..

Although there are more than hundred elements around us we do not find these elements in their native form in nature. This is because most of these elements are highly reactive. They interact with each other to form simple or complex substances. Only elements with the noble gas configura..

Covalent Bonding - Can we imagine a world without oxygen, nitrogen, water or carbon dioxide? Without any of these there would be no life at all. All the above mentioned compounds are covalent compounds formed by sharing of electrons. Non-metal atoms share the valence electrons and form mo..

In molecules containing double bond, which has a pi bond, there is no free rotation and such molecules exist in isomeric forms of 'cis' and 'trans'. In the 'cis' form the similar atoms lie on the same side of a plane placed along the internuclear axis while in the 't..

There are more than hundred elements around us. But, we do not find these elements in their native form. This is because most of these elements are highly reactive. They interact with each other to form simple or complex substances. Only elements with the noble gas configuration hav..