General Organic Chemistry

0.2 g of an organic compound was subjected to estimation of nitrogen by Dumas method in which volume of $\mathrm{N_2}$ evolved (at STP) was found to be 22.400 mL. The percentage of nitrogen in the compound is ______. [nearest integer]

(Given: Molar mass of $\mathrm{N_2}$ is 28 g mol$^{-1}$, Molar volume of $\mathrm{N_2}$ at STP : 22.4 L)

$$\text{(structure)}\xrightarrow[\mathrm{H_2O}]{\mathrm{NaOH}}\underset{\text{(Major Product)}}{\mathrm P}$$
Consider the above reaction. The number of $\pi$ electrons present in the product 'P' is ______.

Phenol on reaction with dilute nitric acid, gives two products. Which method will be most efficient for large scale separation ?

The product formed in the following reaction.
$$\mathrm{(CH_3)_2C=CH_2+H\text{-}C(CH_3)_3\xrightarrow{H^\oplus}\ ?}$$
is :

The IUPAC name of ethylidene chloride is :

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: A mixture contains benzoic acid and napthalene. The pure benzoic acid can be separated out by the use of benzene.

Reason R: Benzoic acid is soluble in hot water.

In the light of the above statements, choose the most appropriate answer from the options given below.

During halogen test, sodium fusion extract is boiled with concentrated $\mathrm{HNO_3}$ to

The major product formed in the following reaction, is

Given below are two statements :

Statement I : In 'Lassaigne's Test', when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.

Statement II : If both nitrogen and sulphur are present in an organic compound, then the excess of sodium used in sodium fusion will decompose the sodium thiocyanate formed to give NaCN and $\mathrm{Na_2S}$.

In the light of the above statements, choose the most appropriate answer from the options given below :

$$\mathrm{(C_7H_5O_2)_2\xrightarrow{h\nu}[X]\rightarrow2\dot C_6H_5+2CO_2}$$
Consider the above reaction and identify the intermediate 'X'

Which will have the highest enol content ?

On complete combustion 0.30 g of an organic compound gave 0.20 g of carbon dioxide and 0.10 g of water. The percentage of carbon in the given organic compound is ______. (Nearest Integer)

The correct order of nucleophilicity is

Which of the following is structure of a separating funnel ?

Which of the following is most stable?

0.25 g of an organic compound containing chlorine gave 0.40 g of silver chloride in Carius estimation. The percentage of chlorine present in the compound is ______. [in nearest integer]

(Given: Molar mass of Ag is 108 g mol$^{-1}$ and that of Cl is 35.5 g mol$^{-1}$)

Which one of the following techniques is not used to spot components of a mixture separated on thin layer chromatographic plate ?

Which of the following structures are aromatic in nature ?

The major product (P) in the reaction

$$\mathrm{Ph{-}CH{=}CH{-}CH_2Br\xrightarrow{HBr}\ ?(P)}\qquad[\mathrm{Ph\ is\ {-}C_6H_5}]$$

is

Which one of the following compounds is inactive towards S$_N$1 reaction ?