1
JEE Main 2022 (Online) 26th June Evening Shift
Numerical
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Amongst SF4, XeF4, CF4 and H2O, the number of species with two lone pairs of electrons is _____________.

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2
JEE Main 2022 (Online) 26th June Evening Shift
Numerical
+4
-1
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A fish swimming in water body when taken out from the water body is covered with a film of water of weight 36 g. When it is subjected to cooking at 100$$^\circ$$C, then the internal energy for vaporization in kJ mol$$-$$1 is ___________. [nearest integer]

[Assume steam to be an ideal gas. Given $$\Delta$$vapH$$^\Theta $$ for water at 373 K and 1 bar is 41.1 kJ mol$$-$$1 ; R = 8.31 J K$$-$$1 mol$$-$$1]

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3
JEE Main 2022 (Online) 26th June Evening Shift
Numerical
+4
-1
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The osmotic pressure exerted by a solution prepared by dissolving 2.0 g of protein of molar mass 60 kg mol$$-$$1 in 200 mL of water at 27$$^\circ$$C is ______________ Pa. [integer value]

(use R = 0.083 L bar mol$$-$$1 K$$-$$1)

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4
JEE Main 2022 (Online) 26th June Evening Shift
Numerical
+4
-1
Change Language

40% of HI undergoes decomposition to H2 and I2 at 300 K. $$\Delta$$G$$^\Theta $$ for this decomposition reaction at one atmosphere pressure is __________ J mol$$-$$1. [nearest integer]

(Use R = 8.31 J K$$-$$1 mol$$-$$1 ; log 2 = 0.3010, ln 10 = 2.3, log 3 = 0.477)

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