JEE Chemistry - MCQ Practice Questions

In the nitration of toluene, the ortho and para isomers are major products because the methyl group is:

Which of the following alkyl halides will give the fastest SN2 reaction with KOH in aqueous ethanol?

The compound 2,2-dimethyl-1-propanol when heated with concentrated H2SO4 gives the major product as:

In the oxidation of primary alcohols using PCC (pyridinium chlorochromate), the primary alcohol is converted to:

Which isomer of dimethylbenzene (xylene) will show only 2 signals in 1H-NMR?

The coupling constant (J) in 1H-NMR for vicinal coupling (3J) typically ranges from:

In the preparation of phenol from cumene (isopropylbenzene), the intermediate cumene hydroperoxide is cleaved in acidic conditions to give:

Which of the following carboxylic acids is most acidic?

The reaction of benzene with excess Cl2 in the presence of FeCl3 followed by hydrolysis gives:

In the Williamson ether synthesis, the reactivity order for nucleophilic substitution by alkoxide ions (RO-) follows which pattern?

A compound with molecular formula C6H12O shows a broad O-H stretch in IR at 3300 cm⁻¹ and no C=O peak. The 1H-NMR shows a singlet at δ 3.3 ppm. The compound is likely:

In the hydroboration-oxidation of alkenes, the reaction is stereospecific because:

Which statement about aldol condensation is correct?

In the ozonolysis of 2-methylbut-2-ene, the number of organic products formed is:

The compound that will show geometrical isomerism is:

In the polymer synthesis by condensation polymerization, the type of linkage formed when dicarboxylic acids react with diols is:

A compound C5H10O2 with no C=O in IR but shows broad O-H stretch. 1H-NMR exhibits signals at δ 3.8 and δ 4.7 ppm. The compound is most likely:

The rate of E1 elimination reaction depends on:

In the conversion of benzene to benzoic acid through the Kolbe reaction, the carboxylic acid is ultimately derived from:

A chiral compound with the structure CH3-CHBr-CH(OH)-CH3 will have how many stereoisomers?