Homolytic fission of a covalent bond leads to the formation of neutral species which contain an unpaired electron called free radicals

Heterolytic fission of a covalent bond leads to the formation of charged species

The species which contains unpaired electrons is

Which of the following contains unpaired electrons ?

Which of the following species have five unpaired electrons ?

The unhybridised 2p orbitals of the central carbon atom of alkyl free radical contains the unpaired electron

Homolytic fission of C - C bond in ethane gives an intermediate in which carbon is

Assertion (A) : _4Be does not form covalent bonds. Reason (R): Electronic configuration of Be is 1s^2 2s^2 and it has no unpaired electrons.

Valence bond theory successfully explains the magnetic behaviour of complexes. The substances which contains unpaired electrons are paramagnetic and paramagnetic character increases as the number of unpaired electrons increases. Magnetic moment of a complex can be determined experimentally and by using formula sqrt(n(n+2)) and we can determine the number of unpaired electrons in it. This information is important in writing electronic structure of complex which in turn also useful in deciding the geometry of complex. Which of the following are diamagnetic ? 1) K_(4)[Fe(CN)_(6)] 2) K_(3)[Cr(CN)_(6)] 3) K_(3)[Co(CN)_(6)] 4) K_(2)[Ni(CN)_(4)]