Chemistry Organic Chemistry questions from JEE Main 2015.
1.4 g of an organic compound was digested according to Kjeldahl's method and the ammonia evolved was absorbed in 60 mL of M/10 ${H}_{2}S{O}_{4}$ solution. The excess sulphuric acid required 20 mL of M/10 NaOH solution for neutralization. The percentage of nitrogen in the compound is:
A compound $A$ with molecular formula ${C}_{10}{H}_{13}Cl$, gives a white precipitate on adding silver nitrate solution. $A$ on reacting with alcoholic $\mathrm{KOH}$ gives compound $B$ as the main product. $B$ on ozonolysis, gives $C$ and $D$. $C$ gives Cannizaro reaction, but not aldol condensation. $D$ gives aldol condensation, but not Cannizaro reaction. $A$ is
Accumulation of which of the following molecules in the muscles occurs as a result of vigorous exercise?
Complete hydrolysis of starch gives:
In Carius method of estimation of halogens, $250\mathrm{mg}$ of an organic compound gave $141\mathrm{mg}\mathrm{AgBr}$. What is the percentage of bromine in the compound (atomic mass of $\mathrm{Ag}=108$ and atomic number of $\mathrm{Br}=80$)?
In the following sequence of reactions: $\mathrm{Toluene}\overset{{\mathrm{KMnO}}_{4}}{\rightarrow }A\overset{{\mathrm{SOCl}}_{2}}{\rightarrow }B\rightarrow _{{\mathrm{BaSO}}_{4}}^{{H}_{2}/\mathrm{Pd}}C$ The Product $C$ is:
In the presence of a small amount of phosphorous, aliphatic carboxylic acid reacts with chlorine or bromine to yield a reaction in which, $\alpha -$hydrogen is been replaced by halogen. This reaction is known as
In the reaction,  The product $E$ is
In the reaction sequence $2C{H}_{3}CHO \overset{O{H}^{-}}{\rightarrow } A \overset{\Delta }{\rightarrow } B$ ; the product B is:
 A is :
Match the organic compounds in column - $I$ with the Lassaigne's test result in column - $\mathrm{II}$ appropriately: <table class="pyq-table"><tbody><tr><td></td><td>Column – $I$</td><td></td><td>Column - $\mathrm{II}$</td></tr><tr><td>A.</td><td>Aniline</td><td>i.</td><td>Red colour with $FeC{l}_{3}$</td></tr><tr><td>B.</td><td>Benzene sulfonic acid</td><td>ii.</td><td>Violet color with sodium nitroprusside</td></tr><tr><td>C.</td><td>Thiourea</td><td>iii.</td><td>Blue color with and acidic solution of $FeS{O}_{4}$</td></tr></tbody></table>
The correct order of basicity is
The number of structural isomers for ${C}_{6}{H}_{14}$ is:
The optically inactive compound from the following is:
The synthesis of alkyl fluorides is best accomplished by:
What is the major product expected from the following reaction?  Where D is an isotope of hydrogen.
Which compound would give $5-$keto$-2-$methyl hexanal upon ozonolysis?
Which of the following compounds will exhibit geometrical isomerism?
Which of the following pairs of compounds are positional isomers?
Which of the vitamins given below is water soluble?