Organic Chemistry PYQ — Page 46

In Carius method, halogen containing organic compound is heated with fuming nitric acid in the presence of:

The number of acyclic structural isomers (including geometrical isomers) for pentene are

What is the major product "P" of the following reaction ? 

Which one of the following gives the most stable Diazonium salt ?

The structure of product $C,$ formed by the following sequence of reactions is : ${\mathrm{CH}}_{3}\mathrm{COOH}+{\mathrm{SOCl}}_{2}\longrightarrow A\rightarrow _{{\mathrm{AlCl}}_{3}}^{\mathrm{Benzene}}\longrightarrow B\rightarrow _{-\mathrm{OH}}^{\mathrm{KCN}}\longrightarrow C$

Out of the following, which type of interaction is responsible for the stabilisation of $\alpha -$helix structure of proteins?

In the following molecules,  Hybridisation of carbon $a,b$ and $c$ respectively are :

Which one of the following compounds contains $\beta -{C}_{1}-{C}_{4}$ glycosidic linkage ?

 Consider the given reaction, percentage yield of :

The total number of reagents from those given below, that can convert nitrobenzene into aniline is __________ . (Integer answer) I. $\mathrm{Sn}-\mathrm{HCl}$ II. $\mathrm{Sn}-{\mathrm{NH}}_{4}\mathrm{OH}$ III. $\mathrm{Fe}-\mathrm{HCl}$ IV. $\mathrm{Zn}-\mathrm{HCl}$ V. ${H}_{2}-\mathrm{Pd}$ VI. ${H}_{2}-$ Raney Nickel

Identify the incorrect statement from the following.

Given below are two statements: Statement $I$: A mixture of chloroform and aniline can be separated by simple distillation. Statement $\mathrm{II}$: When separating aniline from a mixture of aniline and water by steam distillation aniline boils below its boiling point. In the light of the above statements, choose the most appropriate answer from the options given below:

The structure of the starting compound $P$ used in the reaction given below is: 

The total number of amines among the following which can be synthesized by Gabriel synthesis is ________.

 In the above reactions, the enzyme $A$ and enzyme B respectively are :-

The stereoisomers that are formed by electrophilic addition of bromine to $\mathrm{trans}-\mathrm{but}-2-\mathrm{ene}$ is/are :

 Consider the given reaction, the Product $A$ is:

Which of the following is not a correct statement for primary aliphatic amines?

The transformation occurring in Duma's method is given below ${C}_{2}{H}_{7}N+(2x+\frac{y}{2})\mathrm{CuO}\rightarrow {\mathrm{xCO}}_{2}+\frac{y}{2}{H}_{2}O+\frac{z}{2}{N}_{2}+(2x+\frac{y}{2})\mathrm{Cu}$ The value of $y$ is (Integer answer)

Which one of the following compounds is not aromatic?

When $10\mathrm{mL}$ of an aqueous solution of ${\mathrm{KMnO}}_{4}$ was titrated in acidic medium, equal volume of $0.1M$ of an aqueous solution of ferrous sulphate was required for complete discharge of colour. The strength of ${\mathrm{KMnO}}_{4}$ in grams per litre is _______$\times {10}^{-2}.$ (Nearest integer) [Atomic mass of $K=39,\mathrm{Mn}=55,O=16$]

Which of the following compounds does not exhibit resonance ?

Which of the following molecules does not show stereo isomerism ?

The correct pair(s) of the ambident nucleophiles is (are): (A) $\mathrm{AgCN}/\mathrm{KCN}$ (B) $\mathrm{RCOOAg}/\mathrm{RCOOK}$ (C) ${\mathrm{AgNO}}_{2}/{\mathrm{KNO}}_{2}$ (D) $\mathrm{AgI}/\mathrm{KI}$