The mechanism of Sn1 reaction is given as: R - X ⟶ R ^ ⊕ X ^ ⊖ ⟶ R...

The mechanism of Sn1 reaction is given as:

$R - X ⟶ {R}^{⊕}{X}^{⊖} ⟶ {R}^{⊕} ‖ {X}^{⊖}\overset{{Y}^{⊖}}{⟶}R - Y + {X}^{⊖}$
$lonpairSolvent$
$Speparatedion$
$pair$

A student writes general characteristics based on the given mechanism as :
(a) The reaction is favoured by weak nucleophiles.
(b) ${R}^{⊕}$ would be easily formed if the substituents are bulky $y$
(c) The reaction is accompanied by recemization
(d) The reaction is favoured by non-polar solvents.

Which observations are correct?

Options

A(a) and (b)
B(a) and (c)
C(a), (b) and (c)
D(b) and (d)

Correct answer

C. (a), (b) and (c)

Step-by-step solution

Above reaction is

S{N}^{1}

reaction as it proceed via formation of carbocation. Polar protic solvent is more suitable for

S{N}^{1}

and recemisation takes place.

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