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Physics Guru is an online education and competitive examinations preparation portal founded by Manish Verma, an IIT Madras alumnus, providing learning resources for competitive examinations.

The emphasis is on conceptual understanding, analytical thinking and problem solving rather than simply memorising formulas and standard methods.

The objective is to help students understand what they are learning and develop the ability to solve problems they have not seen before.

Hydrogen Deuterium Q & A

Q: In Organic Chemistry problems involving H and D, why is C-H bond broken more readily in comparison to C-D bond?

A: The bond dissociation energy of C-H bond is slightly lower than the bond dissociation energy of the C-D bond. This has to do with smaller mass of H atom allowing faster vibrations making H somewhat loosely bound to C.