AP EAMCET · Chemistry · Hydrogen
Given below are two statements
Assertion (A): Protium and deuterium differ in their rates of reactions.
Reason (R): They have different enthalpies of bond dissociation.
The correct answer is
- A Both (A) and (R) are correct and, (R) is the correct explanation of \((A)\)
- B Both (A) and (R) are correct but (R) is not the correct explanation of \((\mathrm{A})\)
- C (A) is correct but (R) is incorrect
- D (A) is incorrect but (R) is correct
Answer & Solution
Correct Answer
(A) Both (A) and (R) are correct and, (R) is the correct explanation of \((A)\)
Step-by-step Solution
Detailed explanation
\(\mathrm{H}-\mathrm{H}\) bond enthalpy \(=435.88 \mathrm{~kJ} \mathrm{~mol}^{-1}\) \(\mathrm{D}-\mathrm{D}\) bond enthalpy \(=443.35 \mathrm{~kJ} \mathrm{~mol}^{-1}\). Due to a difference in their bond dissociation enthalpies, they undergo chemical reactions at different rates.…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- If \(\mathrm{CO}_2\) gas having a partial pressure of 1.67 bar is bubbled through l L water at \(298 \mathrm{~K}\), the amount of \(\mathrm{CO}_2\) dissolved in water in \(\mathrm{g} \mathrm{L}^{-1}\) is approximately. (Henry's law constant of \(\mathrm{CO}_2\) is \(1.67 \mathrm{k}\) bar at \(298 \mathrm{~K}\) )AP EAMCET 2018 Medium
- Consider the following reactions
\(Y\) and \(Z\) respectively areAP EAMCET 2024 Medium - According to "molecular orbital theory", which among the following diatomic molecules only has \(\pi\)-bonds?AP EAMCET 2021 Medium
- The charring of sugar takes place when treated with concentrated \(\mathrm{H}_2 \mathrm{SO}_4\). What is the type of reaction involved in it?AP EAMCET 2014 Medium
- What is the volume (in \(\mathrm{mL}\) ) of \(20 \mathrm{vol} \mathrm{H}_2 \mathrm{O}_2\) required to completely react with \(500 \mathrm{~mL}\) of \(0.02 \mathrm{M}\) acidified \(\mathrm{KMnO}_4\) solution?AP EAMCET 2019 Medium
- Which of the following correctly represents copper sulphate pentahydrate?AP EAMCET 2019 Easy
More PYQs from AP EAMCET
- With increasing Principal Quantum number, the energy difference between adjacent energy levels in H-atomAP EAMCET 2021 Easy
- The vapour pressure of pure benzene and toluene are 160 and \(60 \mathrm{~mm} \mathrm{Hg}\) respectively. The mole fraction of benzene in vapour phase in contact with equimolar solution of benzene and toluene isAP EAMCET 2016 Hard
- If \(A B C\) is not a right angled triangle and \(\sin \left(\frac{\pi}{4}-A\right) \sin \left(\frac{\pi}{4}-B\right)=-\frac{1}{2 \sqrt{2}} \operatorname{cosec}\left(\frac{\pi}{4}-C\right)\), then \(\tan A \tan B+\tan B \tan C+\tan C \tan A=\)AP EAMCET 2019 Medium
- The depression in freezing point of solution of molality \(0.01 \mathrm{~mol} \mathrm{~kg}^{-1}\) is highest with respect to which of the solvent? (Whose \(K_f\) is given in brackets)AP EAMCET 2022 Medium
- Let \([\mathrm{x}]\) represent the greatest integer less than or equal to \(\mathrm{x},\{\mathrm{x}\}=\mathrm{x}-[\mathrm{x}]\), \(\sqrt{2}=1.414\) and \(\sqrt{3}=1.732\). If \(f(x)=\left\{x+\left[\frac{x}{1+x^2}\right]\right\}\) is a real valued function, then \(\mathrm{f}(\sqrt{2})+\mathrm{f}(-\sqrt{3})=\)AP EAMCET 2025 Medium
- Which of the following molecules contain sulphur atom in their structures
I. Morphine
II. Heroin
III. Penicillin
IV. Terpineol
V. CimetidineAP EAMCET 2024 Medium