Many species of snakes lay eggs, but in the forests of northern Minnesota where growing seasons are short, only live-bearing snake species are present. This trend toward species that perform live birth is an example of

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#Question id: 20233

#XL - P Chemistry

In O^-₂  , O₂ ,  O₂^-2  molecular species the total number of antibonding electrons respectively are

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#Question id: 20234

#XL - P Chemistry

Match the following and choose the correct Answer

Column - I	Column -II
(i) sp3d2	(a) Ni[(CN)4]2-
(ii) sp3d	(b) SnCl2
(iii) dsp2	(c) ICl4-
(iv) sp2	(d) TeCl4

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#Question id: 20235

#XL - P Chemistry

Among the following compounds, the one that is polar and has the central atom with sp² hyridisation is

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#Question id: 20236

#XL - P Chemistry

Match the following

Set A	Set B
(1) stability of bond	(p) Bond energy
(2) Molecular orbital theory	(q) Bond order
(3) octet rule	(r) Variable Valency
(4) Valence bond theory	(s) Electronic concept of valency

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#Question id: 20237

#XL - P Chemistry

Bond strength increases with

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#Question id: 20238

#XL - P Chemistry

O₂⁺² will have