Organic Chemistry Questions

The number of sigma ($\sigma$) and pi ($\pi$) bonds in pent-2-en-4-yne is:

The structure of intermediate $A$ in the following reaction is:

The most suitable reagent for the following conversion, is:

Among the following, the reaction that proceeds through an electrophilic substitution, is:

The compound that is most difficult to protonate is:

An alkene "A" on reaction with O
3
​
and Zn–H
2
​
O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene "A" gives "B" as the major product. The structure of product "B" is:

The major product of the following reaction is:
[Reaction of Phthalic acid with NH3 and strong heating]

The correct order of the basic strength of methyl substituted amines in aqueous solution is:

The total number of pi-bond electrons in the structure of anthracene (${\text{C}}_{14}{\text{H}}_{10}$) is:

The product formed by the reaction of an aldehyde with a primary amine is:

Mark the reaction among the following that does not give benzoic acid as the major product:

The most stable carbocation among the following is:

The vapor of secondary alcohol passed over heated copper at $573\text{K}$ yield:

A reagent that can distinguish cis-cyclopenta-1,2-diol from the trans-isomer is:

In the reaction ${\text{CH}}_3\text{C}\equiv \text{CH}\stackrel{\text{Red hot iron tube, }873\text{K}}{\to }A$. The number of ($\sigma$) bonds present in the product (A) is:

Among the following, which hydrolysis reaction occurs at the slowest rate?

The major products C and D formed in the following reaction respectively are:${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2{\text{OC(CH}}_3{)}_3\stackrel{\text{Excess HI, }\Delta }{\to }\text{C}+\text{D}$

The IUPAC name of the compound is:

Which amine reacts with Hinsberg's reagent to produce an alkali insoluble product?

The alkane that gives only one monochloro product on chlorination with ${\text{Cl}}_2$ in presence of diffused sunlight is:

What is the correct order of the carboxylic acids' strength?

Which structure corresponds to the IUPAC name 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?

A few reactions are given below:

Select the reaction type for the above reactions: