JEE Main 2021 (Online) 26th August Morning Shift | Hydrogen Question 39 | Chemistry

At 298.2 K the relationship between enthalpy of bond dissociation (in kJ mol^$$-$$1) for hydrogen (E_H) and its isotope, deuterium (E_D), is best described by :

$${E_H} = {1 \over 2}{E_D}$$

$${E_H} = {E_D}$$

$${E_H} \simeq {E_D} - 7.5$$

$${E_H} = 2{E_D}$$

JEE Main 2021 (Online) 22th July Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

The water having more dissolved O₂ is :

boiling water

water at 80$$^\circ$$C

polluted water

water at 4$$^\circ$$C

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