Total number of nucleophiles from the followi | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) nucleophile is a species that donates an electron pair to form a chemical bond. They are either negatively charged or neutral species with at leas

Vedclass · Accepted Answer

$5$

Vedclass · Answer

(A) nucleophile is a species that donates an electron pair to form a chemical bond. They are either negatively charged or neutral species with at least one lone pair of electrons or a $\pi$-bond.$1$. $NH_3$: Has a lone pair on $N$.$2$. $PhSH$: Has lone pairs on $S$.$3$. $(H_3C)_2S$: Has lone pairs on $S$.$4$. $H_2C=CH_2$: Contains a $\pi$-bond.$5$. $\stackrel{\ominus}{O}H$: Negatively charged with lone pairs.$H_3O^{\oplus}$ is an electrophile (or acid),$(CH_3)_2CO$ is an electrophile (carbonyl carbon),and $CH_3CH=NCH_3$ has a lone pair on $N$ but is generally considered an electrophile at the $C=N$ bond,though it can act as a weak nucleophile. However,in standard classification,the first $5$ are clearly identified as nucleophiles.Thus,the total number of nucleophiles is $5$.

Column $I$	Column $II$
$A$. $Ph-N_2Cl + Ph-OH \xrightarrow{NaOH/H_2O, 0^{\circ}C} Ph-N=N-Ph-OH$	$p$. Racemic mixture
$B$. $Pinacol \xrightarrow{H_2SO_4} Pinacolone$	$q$. Addition reaction
$C$. $Ph-CO-CH_3 \xrightarrow{1. LiAlH_4, 2. H_3O^+} Ph-CH(OH)-CH_3$	$r$. Substitution reaction
$D$. $4-chlorocyclohexanethiol \xrightarrow{Base} Thiacycloheptane$	$s$. Coupling reaction
	$t$. Carbocation intermediate

Total number of nucleophiles from the following is $:-$ $NH_3, PhSH, (H_3C)_2S, H_2C=CH_2, \stackrel{\ominus}{O}H, H_3O^{\oplus}, (CH_3)_2CO, CH_3CH=NCH_3$

Similar Questions

The haloform test is given by which of the following substances?

What is reactant $A$?

Identify $A$ in the following reaction: $A + CH_3MgBr$ $\xrightarrow{\text{ether}} \text{complex}$ $\xrightarrow{H_3O^{+}} (CH_3)_3C-OH$

Among the following compounds,which will react with acetone to give a product containing $> C = N -$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module