Organic chemistry-some basic principles and techniques practice · Mixed difficulty

Among the acids given in the options, identify the acid which has maximum tendency to ionize in aqueous solution

Which is most commonly used to dry organic liquids?

Which of the following represents the correct IUPAC name for the compounds concerned?

The reaction ${\left( {\mathrm{C}{\mathrm{H}_3}} \right)_3}\mathrm{CBr}\xrightarrow{{{H_2}O}}\mathrm{\;}{\left( {\mathrm{C}{\mathrm{H}_3}} \right)_3}\mathrm{\;C}.\mathrm{OH\;is}:$

Cyclohexane is :

$\left( {\text{i}} \right)\,\,\,{{\text{C}}_6}{{\text{H}}_5} - \mathop {\text{C}}\limits^{\begin{array}{cccccccccccccccccccc} {\text{O}} \\ {||} \end{array}} - {{\text{C}}_6}{{\text{H}}_5}$

(ii) $\mathrm{C}_6 \mathrm{H}_5-\mathrm{CHO}$

(iii) $p-\mathrm{CH}_3-\mathrm{C}_6 \mathrm{H}_4-\mathrm{CHO}$

(iv) $p-\mathrm{CH}_3 \mathrm{O}-\mathrm{C}_6 \mathrm{H}_4-\mathrm{CHO}$

The correct order for nucleophilic addition reaction is:

Dumas method involves the determination of nitrogen content in the organic compound in the form of

Electrophiles are :

Statement I : ${S_N}1$ reaction of 2-chloro-3, 3-dimethylbutane with $NaOH$ gives 2,3-dimethyl butan-2-ol as the major product
Statement II : Intermediate is a secondary carbocation which undergoes 1, 2-methyl shift giving more stable tertiary carbocation

Why is nitric acid added to sodium extract before adding silver nitrate for testing halogens?

A racemic mixture is a mixture of :

Prior to the seventeenth century people knew the processes except:

$-\text{I}$ effect is exhibited by which one of the following.

The compound abd C—C abd will exist in :

The technique used for purification of steam volatile
water immiscible substances is:

Removal of hydrogen atom is easier when it is attached to :

Mesomeric effect involves delocalisation of

Identify which of the following group act as $+ M$ as well as $- m$?

The arrangement of atoms that characterises a particular stereoisomer is called :

Caffeine has a molecular weight of 194. If it contains $28.9 \%$ by mass of nitrogen, number of atoms of nitrogen in one molecule of caffeine is

Correct statement among the following is

The maximum number of alkyl groups in ${\mathrm{C}_8}{\mathrm{H}_{18}}$ is :

20 mL of $\mathrm{C}{\mathrm{H}_4}$ is burnt with 60 mL of ${\mathrm{O}_2}$. If all measurements are made at the same P and T, what is the volume of unreacted oxygen?

The number of different substitution products possible when ethane is allowed to react with bromine is sunlight are :

In which of the following species hyper conjugation is possible?

Appearance of red colour on treatment with $\mathrm{Na}$ fusion extract of an organic compound with $\mathrm{FeSO}_4$ in presence of conc. $\mathrm{H}_2 \mathrm{SO}_4$ indicate element?

$\beta -$ elimination is not possible in

Interaction b/w ${\pi}$. bond $\&$ lone pair $l-s$ on adjacent atoms

Which of the two ions from the list given below that have the geometry that is explained by the same hybridization of orbitals, $NO_2^ - ,NO_3^ - ,NH_2^ - ,NH_4^ + ,SC{N^ - }?$

Thin layer chromatography is a type of _______