The hybridization of carbon atoms 1, 2, and 3 in the following are, respectively

Question

The hybridization of carbon atoms 1, 2, and 3 in the following are, respectively A) sp^2, sp^3, and sp^3. B) sp, sp, and sp^2. C) sp^2. sp^2, and sp^3. D) sp, sp, and sp^3. Which statement is correct concerning the relative stabilities of the two conformations, A and B. below? A) A is more stable. B) B is more stable. C) A and B are equal in stabilities. D) A and B are not equal in stability, but the preferred conformation cannot be determined by inspection. The most stable chair conformation of cis-1-terl-butyl-3-methylcyclohexane has A) both groups equatorial. B) both groups axial. C) the tert-butyl group equatorial and the methyl group axial. D) the tert-butyl group axial and the methyl group equatorial. Identify the relationship of the two compounds below. A) stereoisomers B) identical C) constitutional isomers D) different conformations of the same compound

Explanation / Answer

(10) Number of hybrid orbitals around an atom = number of sigma bond around that atom

(C) sp2, sp2 and sp3

(11)

(B) B is more stable because two methyl groups are at equitorial position.

(12)

(A) Both are equitorial for stability because it reduces the axial - axial repulsions.

(13)

(B) Identical

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