If we consider no mixing of 2s and 2p orbitals, then the bond order and magnetic nature of the diatomic molecule `C_2` is:
a) 3 and diamagnetic
b) 2.5 and diamagnetic
c) 2 and diamagnetic
d) 2 and paramagnetic

Assuming that Hund’s rule is violated, the bond order and magnetic nature of the diatomic molecule C_(2) is :

Which diatomic molecule of second period basides O_(2) should be paramagnetic ? .

Drawn the molecular orbital diagram and write the bond order, magnetic property of N_(2) molecule and N_(2)^(o+) ion ?

O_2 molecule is paramagnetic in nature.

There are five species P, Q, R, S and T. Spectroscopical analysis shows that P,Q and R are homonuclear diatomic species and have their bond order 2.5, 1.5 and 2.5 respectively and rest two species S and T are heteronuclear diatomic species and have bond order 3 and 2 respectively. All homonuclear diatomic species are paramagnetic and all heteronuclear species are diamagnetic in nature. P, R , S and T are monocovalent positive ion and Q is monovalent negative ion: Q. According to given information the incorrect match is :

The geometry and magnetic behaviour of the complex [Ni(CO)_4] are (a)square planar geometry and paramagnetic (b)tetrahedral geometry and diamagnetic (c)square planar geometry and diamagnetic (d)tetrahedral geometry and paramagnetic

The strength of bonds by 2s -2s, 2p2p and 2p-2s overlap has the order

The distribution of electrons among molecular orbitals is called the electronic configuration of the molecule which provides us the following very important informations about the molecule. (A)Stability of molecule : The molecule is stable if number of bonding moleculer orbital electrons (N_b) is greater than the number of antibonding molecular orbital electrons (N_a) . (B) Bond order : Bond order =1/2(N_b-N_a) A positive bond order means a stable molecule while a negative or zero bond order means an unstable molecule. ( C)Nature of the bond : Bond order 1,2 and 3 corresponds to single , double and triple bonds respectively. (D)Bond length: Bond length decreases as bond order increases. (E)Magnetic nature: Molecular orbitals in a molecule are doubly occupied , the substance is diamagnetic and if one or more molecular orbitals are singly occupied, it is paramagnetic. Which of the following statements is incorrect ?

assertion : Ozone is a powerful oxidising agent in comparison to O_(2) . reason: O_(3) molecules is diamagnetic but O_(2)^ is paramagnetic.

Write true or false: [NiCI_(4)]^(2-) is diamagnetic in nature .