NEET Chemistry Hydrocarbons Class 11 Questions

CH = CH - CH₃ + HBr ⟶ X, X in the reaction is:

Assertion : CH₃ - CH = CH - CH₃, on reaction with alcoholic KOH gives CH₃CH = CHCH₃ as a result of dehydrohalogenation. Reason : Elimination reaction takes place in accordance with Markovnikov's rule.

In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices.

Assertion (A): Addition reaction of water to bu$t^{-1}$-ene in acidic medium yields buta$n^{-1}$-ol.

Reason (R): Addition of water in acidic medium proceeds through the formation of primary carbocation.

CH₃—C≡CH 40% H₂SO₄, 1% HgSO₄ → A Isomerisation → CH₃—C—CH₃

The alkane that gives only one mono-chloro product on chlorination with Cl₂ in presence of diffused sunlight is

What is the simplest molecule of the alkyne series?

What is the effect of peroxides when HBr is added to unsymmetrical alkenes?

What is produced when alkenes react with cold, dilute, aqueous potassium permanganate solution?

What is the process called when alkyl halides react with sodium metal in dry ether to form higher alkanes?

What term is used to describe the different spatial arrangements of atoms in alkanes that can be converted into one another by rotation around a C-C single bond?

What is the molecular formula of benzene?

What is the first step in the mechanism of electrophilic substitution reactions?

Which of the following groups is considered a deactivating group in substitution reactions involving aryl halides?

What type of reaction involves the elimination of a halogen acid to form alkenes?

What is the result of the addition of dihydrogen to an alkyne in the presence of a catalyst?

What is a characteristic feature of aromatic hydrocarbons?

Which type of dihalides has two halogen atoms attached to adjacent carbon atoms?

Which halogen has the highest rate of reaction with alkanes?

What is the order of reactivity of hydrogen halides when added to alkenes?

What is the bond enthalpy of the double bond in alkenes?

Which of the following statements regarding the oxidation of alkanes is correct?

What effect do halogens have on the benzene ring in terms of substitution reactions?

What happens to the aromatic character of the sigma complex during electrophilic substitution?

What is the molecular formula of benzene?

How many structural isomers can be formed from the molecular formula C5H12?

What characteristic feature of aromatic hydrocarbons allows for the delocalization of π electrons?

What is the main type of reaction that alkynes primarily undergo?

What happens to the aromatic character of the sigma complex during a substitution reaction?

What term is used to describe the different spatial arrangements of atoms in alkanes that can be converted into one another by rotation around a C-C single bond?

What characteristic feature defines aromatic hydrocarbons?

What happens to the aromatic character of benzene during the formation of a sigma complex?

What is the bond enthalpy of the double bond in alkenes?

What is the main type of reaction that alkynes undergo?

Which of the following statements about hydrocarbons is correct?

Which of the following statements about hydrocarbons is correct?

Which of the following statements about alkenes is correct?

Which of the following statements about substitution reactions in hydrocarbons is correct?

Which of the following statements about substitution reactions in hydrocarbons is correct?

Which of the following combinations about alkenes is correct?

Which of the following statements about alkynes is correct?

Which of the following statements about aromatic hydrocarbons is correct?

Which of the following statements about hydrocarbons is correct?

Which of the following statements about hydrocarbons is correct?

What is the IUPAC name of the first stable member of the alkene series?

Which of the following statements about alkanes is correct?

Which of the following statements about the addition reactions of alkenes is correct?

Which of the following statements about alkenes is correct?

Which of the following statements about substitution reactions of benzene is correct?

Which of the following statements about the addition reactions of alkynes is correct?

Which of the following statements about aromatic hydrocarbons is correct?