Catalytic Tra...

Catalytic Transfer Hydrogenation

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Q. 180 g of a hydrocarbon reacts fully with excess oxygen and produces 264 g of

C O_{2}

and 108 g of

H_{2} O

. If the ratio of molar mass of the hydrocarbon to the empirical formula mass is 6 then find the molecular formula of given hydrocarbon.

S_{N} 1

reaction undergoes through a carbocation intermediate as follows:

R - X (a q) s l o w ⇌ R^{+} (a q) + X^{-} (a q) H_{2} O - -- \to F a s t R O H (a q) + H^{+} (a q)

[R = t - B u, i s o - P r, E t, M e]

Choose the correct statement(s):

The decreasing order of rate of $S_{N} 1$ reaction is: $t - B u X > i s o - P r X > E t X > M e X$
The decreasing order of ionization energy is: $M e X > E t X > i s o - P r X > t - B u X$
The decreasing order of energy of activation is: $t - B u X > i s o - P r X > E t X > M e X$
The decreasing order of rate of $S_{N} 1$ reaction is: $M e X > E t X > i s o - P r X > t - B u X$

C H_{2} = C H_{2} + H_{2} N i ⟶ C H_{3} - C H_{3}

The above reaction is known as:

Q. Which of the following alkenes will react faster with

H_{2}

under catalytic hydrogenation conditions?