Organic Chemistry PYQ — Page 22

The interaction between $\pi$ bond and lone pair of electrons present on an adjacent atom is responsible for

Total number of essential amino acid among the given list of amino acids is _______ Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline

Which among the following halide/s will not show ${S}_{N}1$ reaction:

Number of isomeric products formed by monochlorination of $2$-methylbutane in presence of sunlight is _______.

Structure of $4-\mathrm{Methylpent}-2-\mathrm{enal}$ is:

 What is the structure of C

Following is a confirmatory test for aromatic primary amines. Identify reagent (A) and (B) 

Functional group present in sulphonic acids is :

Which of the following statements are correct? A. Glycerol is purified by vacuum distillation because it decomposes at its normal boiling point. B. Aniline can be purified by steam distillation as aniline is miscible in water. C. Ethanol can be separated from ethanol water mixture by azeotropic distillation because it forms azeotrope. D. An organic compound is pure, if mixed M.P. is remained same. Choose the most appropriate answer from the options given below :

The major product of the following reaction is \(P\). \(\mathrm{CH}_3 \mathrm{C}=\mathrm{C}-\mathrm{CH}_3 \xrightarrow[\substack{\text { (ii) dil. } \mathrm{KMnO}_4 \\ 273 \mathrm{~K}}]{\text { (i) } \mathrm{Na} / \text { ing } \mathrm{NH}_3} '^{\prime}\) Number of oxygen atoms present in product ' \(\mathrm{P}\) ' is _______ (nearest integer)

Identify compound \((\mathrm{Z})\) in the following reaction sequence. 

The major products from the following reaction sequence are product \(A\) and product B.  The total sum of \(\pi\) electrons in product \(A\) and product \(B\) are _______ (nearest integer)

The number of different chain isomers for \(\mathrm{C}_7 \mathrm{H}_{16}\) is \(\qquad\)

\(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br}+\mathrm{NaOH} \xrightarrow{\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}}\) Product 'A'  Consider the above reactions, identify product \(B\) and product \(C\).

Bond line formula of $\mathrm{HOCH}(\mathrm{CN}{)}_{2}$ is:

 The incorrect statements regarding enzymes are : (A) Enzymes are biocatalysts. (B) Enzymes are non-specific and can catalyse different kinds of reactions. (C) Most Enzymes are globular proteins. (D) Enzyme - oxidase catalyses the hydrolysis of maltose into glucose. Choose the correct answer from the option given below :

The number of optical isomers in following compound is: ________ 

Identify the correct set of reagents or reaction conditions ' \(X\) ' and ' \(Y\) ' in the following set of transformation 

The molecular formula of second homologue in the homologous series of mono carboxylic acids is _________.

m-chlorobenzaldehyde on treatment with $50%$$\mathrm{KOH}$ solution yields

Following Kjeldahl's method, $1g$ of organic compound released ammonia, that neutralised $10\mathrm{mL}$ of $2{\mathrm{MH}}_{2}{\mathrm{SO}}_{4}.$ The percentage of nitrogen in the compound is _______ $%.$

From \(6.55 \mathrm{~g}\) of aniline, the maximum amount of acetanilide that can be prepared will be ______ \(\times 10^{-1} \mathrm{~g}\).

The product of the following reaction is $P$.  The number of hydroxyl groups present in the product $P$ is________.

Appearance of blood red colour, on treatment of the sodium fusion extract of an organic compound with ${\mathrm{FeSO}}_{4}$ in presence of concentrated ${H}_{2}{\mathrm{SO}}_{4}$ indicates the presence of element/s