26. What is the relationship between the following two compounds? A. Constitutio

Question

26. What is the relationship between the following two compounds? A. Constitutional lsomers B. The same compound C. Completely different and not constitutional isomers 27. What is the relationship between the following two compounds? A. Constitutional lsomers B. The same compound C. Completely different and not constitutional isomers 28. What is the relationship between the following two compounds? A. Constitutional Isomers B. The same compound C. Completely different and not constitutional isomers 29. For the following reaction, identify the Lewis acid. B) ll C) III D) Both I & 30. For the following reaction, identify the Lewis base. C) III D) Both I & 31. Which of the following is the most stable conformer of the most stable isomer of IA-diethylcyclohexane? 32. Which of the following contains an equatorial OH? 33. Which of the following is a Newman projection for the following compound as viewed down the indicated bond? 34. Are the two substituents cis or trans? B. cis A. trans C, neither

Explanation / Answer

(26)

Molecular formula of pentane is C5H12

Molecular Forumla of cyclo pentane is C5H10

SO, they are not isomers, both are different compounds.

(C)

(27)

Both the compounds have same molecular formula, C5H12 and same geometry. Hence they both are one and the same.

(B)

(28)

Thye both have same molecular formula, C5H12, but they differ in their stucture, hence, they are constitutional isomers

(A)

(29)

Lewis acid is the species that gains electron pair and Lewis base is the species that donates electron pair.

So, BF3 is Lewis acid as it gains electron pair from nitrogen of amine in the given reaction.

(A) I

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