Consider the reactions -0- -CH3-2CH-CH2Br -CH3-2CH-CH2OC2H5 -HBr -ii- -CH3-2CH- CH2Br -ch3-2ch-ch2oc2h5 - br- the mechanisms of reactions -i- and -ii- are respectively-1- SN2 and S N2 -2- SN2 and SN1 -3- SN1 and SN2 -4- SN1 and S1

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Hydrogenation of Alkynes

Consider the ...

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Consider the reactions :(0) (CH3)2CH-CH2Br \xrightarrow{c2h5oh} (CH3)2CH-CH2OC2H5 +HBr (ii) (CH3)2CH- CH2Br \xrightarrow{c2h5o-}(ch3)2ch-ch2oc2h5 + br- the mechanisms of reactions (i) and (ii) are respectively(1) SN2 and S N2 (2) SN2 and SN1 (3) SN1 and SN2 (4) SN1 and S1

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Consider the reactions

(i) $(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{5} O H - ---- \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + H B r$

(ii) $(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{S} O^{-} - ---- \to (C H_{3})_{2} C H C H_{2} O C_{2} H_{5} + B r^{-}$

The mechanism of reactions (i) & (ii) are respectively

(C H_{3})_{2} C H - C H_{2} B r

C_{2} H_{3} O H - ---- \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + H B r

(C H_{3})_{2} C H - C H_{2} B r

C_{2} H_{3} O^{-} - ---- \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + H B r

(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{5} O H \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + H B r

(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{5} O^{-} \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + B r^{-}

(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{5} O H \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + H B r

(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{5} O^{-} \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + B r^{-}

(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{5} O H - ---- \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + H B r

(C H_{3})_{2} C H - C H_{2} B r C_{2} H_{5} O^{-} - ---- \to (C H_{3})_{2} C H - C H_{2} O C_{2} H_{5} + B r^{-}

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