Take the relative reactivities per hydrogen for $Cl X_{2}$ at 25 $^{\circ}$ C as primary : secondary : tertiary = 1 : 3.8 : 5. The alkane shown is monochlorinated at 25 $^{\circ}$ C. Select all correct statements.

AThree constitutional monochloro products form.
BThe most abundant product is the primary chloride formed from the tert-butyl end.
CThe secondary chloride has a stereocentre.
DA tertiary chloride is the minor product.

Answer: A, B, C

The alkane is 2,2-dimethylbutane. Weights: nine

CH X_{3}

H on the tert-butyl group give 9; the two

CH X_{2}

H give 7.6; the terminal

CH X_{3}

gives 3; total 19.6 (45.9%, 38.8%, 15.3%). The secondary chloride, 2-chloro-3,3-dimethylbutane, has four different groups on the CHCl carbon. The molecule has no tertiary hydrogen, so D is false.

Practice Organic Reaction Mechanisms II: Electrophilic and Radical Reactions More on Monochlorination products and selectivity of drawn alkanes

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Take the relative reactivities per hydrogen for ClX2​ at 25 ∘C as primary : secondary : tertiary = 1 : 3.8 : 5. The alkane shown is monochlorinated at 25 ∘C. Select all correct statements.

Answer: A, B, C

More questions on Monochlorination products and selectivity of drawn alkanes

Take the relative reactivities per hydrogen for $Cl X_{2}$ at 25 $^{\circ}$ C as primary : secondary : tertiary = 1 : 3.8 : 5. The alkane shown is monochlorinated at 25 $^{\circ}$ C. Select all correct statements.