Statement (I) : Neopentane forms only one monosubstituted derivative.
Statement (II) : Melting point of neopentane is higher than n-pentane
In the light of the above statements, choose the most appropriate answer from the options given below :
(A)Statement I is correct but Statement II is incorrect
(B)Both Statement I and Statement II are correct✓ Correct
(C)Both Statement I and Statement II are incorrect
(D)Statement I is incorrect but Statement II is correct
Answer: (B)
Solution
Neopentane, C(CHX3)X4, has all twelve hydrogen atoms equivalent by its tetrahedral symmetry, so replacing any one of them gives a single monosubstituted product; statement (I) is correct. Its compact, nearly spherical molecules pack into the crystal lattice far more efficiently than the extended chains of n-pentane, so neopentane melts at a markedly higher temperature than n-pentane; statement (II) is correct. Both statements are correct.neopentanen-pentane
JEE Main · 2025 · 02 Apr 2025 · Shift 2 · Single correct option
