Chemistry Organic Chemistry questions from NEET UG 2023.
Which is not a protein?
Match List-I with List-II. \(\begin{array}{|c|l|c|l|} \hline & \text { List-I } & & \text { List-II } \\ \hline & \text { (Mixtures/Sample) } & & \text { (Technique used for purification) } \\ \hline(A) & \text { Glycerol from spent lye } & \text { (I) } & \text { Steam distillation } \\ \hline(B) & \text { Chloroform + Aniline } & \text { (II) } & \text { Fractional distillation } \\ \hline \text { (C) } & \text { Fractions of crude oil } & \text { (III) } & \text { Distillation under reduced pressure } \\ \hline \text { (D) } & \text { Aniline + Water } & \text { (IV) } & \text { Distillation } \\ \hline \end{array}\) Choose the correct answer from the options given below:
Weight (g) of two moles of the organic compound, which is obtained by heating sodium ethanoate with sodium hydroxide in presence of calcium oxide is :
Consider the given reaction: $\mathrm{CH}_3 \mathrm{COCH}_3 \stackrel{\text { dil Ba}(\mathrm{OH})_2}{\longrightarrow}$ "X" The functional groups present in compound " $\mathrm{X}$ " are
Reagents which can be used to convert alcohols to carboxylic acids, are (A) $\mathrm{CrO}_3-\mathrm{H}_2 \mathrm{SO}_4$ (B) $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7+\mathrm{H}_2 \mathrm{SO}_4$ (C) $\mathrm{KMnO}_4+\mathrm{KOH} / \mathrm{H}_3 \mathrm{O}^{+}$ (D) $\mathrm{Cu}, 573 \mathrm{~K}$ (E) $\mathrm{CrO}_3,\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O}$ Choose the most appropriate answer from the options given below.
In Lassaigne's extract of organic compound both nitrogen and sulphur are present, which gives blood-red colour with ${\mathrm{Fe}}^{3+}$ due to the formation of
Which of the following reactions will NOT give primary amine as the product?
Which amongst the following reaction of alkyl halides produces isonitrile as a major products? (A) $\mathrm{R}-\mathrm{X}+\mathrm{HCN} \rightarrow$ (B) $\mathrm{R}-\mathrm{X}+\mathrm{AgCN} \rightarrow$ (C) $\mathrm{R}-\mathrm{X}+\mathrm{KCN} \rightarrow$ (D) $\mathrm{R}-\mathrm{X}+\mathrm{NaCN} \underset{\mathrm{H}_2 \mathrm{O}}{\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}}$ Choose the most appropriate answer from the options given below
Identify the product in the following reaction. 
The given compound  is an example of
The following conversion is known as 
Given below are two statements: Statement I: In an organic compound, when inductive and electromeric effects operate in opposite directions, the inductive effect predominates. Statement II: Hyperconjugation is observed in o-xylene. In the light of the above statements, choose the correct answer from the options given below
Complete the following reaction : 
Cheilosis occurs due to deficiency of
Given below are two statements : Statement I: A unit formed by the attachment of a base to ${1}^{'}$ position of sugar is known as nucleoside Statement II: When nucleoside is linked to phosphorous acid at ${5}^{'}$-position of sugar moiety, we get nucleotide. In the light of the above statements, choose the correct answer from the options given below:
Identify ' $X$ ' in the following reaction. 
Choose the correct sequence of reagents in the conversion of 4-nitrotoluene to 2 -bromotoluene.
Identify the product in the following reaction 
 Identify A and B
Which is not an electrophile?
Identify the final product [D] obtained in the following sequence of reactions. ${\mathrm{CH}}_{3}\mathrm{CHO}\rightarrow _{{H}_{3}{O}^{+}}^{i){\mathrm{LiAlH}}_{4}}[A]\rightarrow _{\Delta }^{{H}_{2}{\mathrm{SO}}_{4}}[B]\overset{\mathrm{HBr}}{\rightarrow }[C]\rightarrow _{\mathrm{Na}/\mathrm{Dry}\mathrm{ether}}^{{C}_{6}{H}_{5}\mathrm{Br}}[D]$
Which amongst the following will be most readily dehydrated under acidic conditions?
The correct order for the rate of $\alpha, \beta$-dehydrohalogenation for the following compounds is 
(i)  (ii)  (iii)  (iv)  (v)  (vi)  (vii)  The number of compounds/species which obey Huckel's rule is _____
$\mathrm{R}-\mathrm{COOH} \frac{\text { (i) "X" }}{\text { (ii) } \mathrm{H}_2 \mathrm{O} / \mathrm{HCl}} \mathrm{R}-\mathrm{CH}_2 \mathrm{OH}$ $\mathrm{R}-\mathrm{CH}=\mathrm{CH}_2 \frac{\text { (i) " X" }}{\text { (ii) } \mathrm{H}_2 \mathrm{O}, \mathrm{NaOH}, \mathrm{H}_2 \mathrm{O}_2} \mathrm{R}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{OH}$ Identify ' $X$ ' in above reactions.
Which amongst the following compounds/species is least basic?
The major product formed in the following conversion is 
