List of top Chemistry Questions on Hydrocarbons asked in KEAM

Aniline reacts with acetic anhydride in pyridine to give a product which reacts with Br2 in CH3COOH to get
When benzene diazonium chloride is treated with Cu and HBr, bromobenzene, N2 and CuCl are obtained. This reaction is called
2-Methylpropene is obtained when sodium methoxide reacts with
One mole of an alkene on ozonolysis gives two moles of propanone. What is the alkene?
Which of the following is a gas at 300K?
When ethene is treated with \(H_{2}\) in the presence of a catalyst, ethane is formed. This reaction is an example of.
Which of the following are carcinogenic hydrocarbons? (i) 1,2-Benzanthracene
(ii) Pent-1-yne
(iii) 1,2-Benzpyrene
(iv) Cyclohexane
(v) 3-Methylcholanthrene
Which one of the following is not an allylic halide?
An example of electrophilic substitution reaction is :
One mole of an alkene on ozonolysis gives a mixture of one mole pentan-3-one and one mole methanal. The alkene is
An organic compound (X) on reductive ozonolysis gave 1 mole of propanal-pent-3-one. Name the organic compound X.
Complete the following reaction :

Which of the following hydrocarbon pair have the highest boiling point and highest melting point respectively?
One mole of an alkene reacts with acidic $KMnO_{4}$ to give two moles of ethanoic acid. What is the alkene?
On complete combustion $0.12\ \text{g}$ of an organic compound gives $0.11\ \text{g}$ of $CO_{2}$. What is the percentage of carbon in the organic compound?
The number of sigma (\( \sigma \)) and pi (\( \pi \)) bonds present in 3-Methylbut-1-ene are respectively
The reagent/s employed in Etard reaction is/are
The hydrocarbon that forms disodium salt with excess metallic sodium is
When bromoethane is treated with metallic Na in dry ethereal solution, n-butane is formed. This reaction is known as
One mole of an alkene on ozonolysis gives one mole of propan-2-one and one mole of formaldehyde. What is the alkene?
The correct decreasing order of acidity of alkynes is
When toluene is treated with \(Cl_2\) in the presence of \(Fe\) in dark, the product formed is
When aryl halide is treated with \(Na\) in dry ether, biphenyl is formed. This reaction is called
The hydrocarbon with molecular formula $C_{20}H_{42}$
When n-hexane is passing over $Mo_2O_3$ catalyst at 773 K and 10–20 atm pressure, the product formed is