BITSAT 2024 | Chemical Bonding and Molecular Structure Question 1 | Chemistry

The bond dissociation energy of $ X_{2}, Y_{2} $ and $ X Y $ are in the ratio of $ 1: 0.5: 1 . \Delta H $ for the formation of $ X Y $ is $ -200 \mathrm{~kJ} / \mathrm{mol} $. The bond dissociation energy of $ X_{2} $ will be

$ 200 \mathrm{~kJ} / \mathrm{mol} $

$ 100 \mathrm{~kJ} / \mathrm{mol} $

$ 400 \mathrm{~kJ} / \mathrm{mol} $

$ 800 \mathrm{~kJ} / \mathrm{mol} $

BITSAT 2024

MCQ (Single Correct Answer)

-1

The hybridisation scheme for the central atom includes a $ d $-orbital contribution in

$ I_{3}^{-} $

$ \mathrm{PCl}_{3} $

$ \mathrm{NO}_{3}^{-} $

$ \mathrm{H}_{2} \mathrm{Se} $

BITSAT 2023

MCQ (Single Correct Answer)

-1

In $$\mathrm{BrF}_3$$ molecule, the lone pairs occupy equatorial positions to minimise

lone pair-bond pair repulsion only

bond pair-bond pair repulsion only

lone pair-lone pair repulsion and lone pair-bond pair repulsion

lone pair-lone pair repulsion only

BITSAT 2023

MCQ (Single Correct Answer)

-1

Which one of the following is/are linear structure?

I. $$\mathrm{I}_3^{-}$$

II. $$\mathrm{NO}_2^{-}$$

III. $$\mathrm{I}_3^{+}$$

IV. $$\mathrm{SO}_2$$

V. $$\mathrm{N}_3^{-}$$

I, II and III

I and V

II, III and IV

All of these

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