STANDARD Chemistry Hydrocarbons Class 11 Questions

The number of chain isomers possible for hydrocarbon C₅H₁₂ is

Wurtz reaction may be used to unite

A mixture of 1-iodoethane and 1-iodopropane is treated with sodium metal and dry ether to carry out Wurtz reaction. Which of the following hydrocarbons will be formed?

An alkene CH₃CH = CH₂ is treated with B₂H₆ in presence of H₂O₂. The final product formed is

Which alkane is produced when sodium salt of butanoic acid is heated with soda lime?

Cumene on reaction with oxygen followed by hydrolysis gives

The reaction, CH₂=CH−CH₃ + HBr → CH₃−CHBr−CH₃ is an example of

The negative part of the addendum (the molecule to be added) adds on to the carbon atom of the double bond containing the least number of hydrogen atoms. This rule is known as

Which step is chain propagation step in the following mechanism? (i) Cl₂ → hν → Cl• + Cl• (ii) Cl• + CH₄ → •CH₃ + HCl (iii) Cl• + Cl• → Cl₂ (iv) •CH₃ + Cl → CH₃Cl

Which of the following reactions follows Markovnikov’s rule?

Match the column I with column II to identify the products of oxidation of alkanes and mark the appropriate choice.

Identify the products X and Y formed in the following reaction. CH₃—CH₂—CH=CH—CH₃ + HCl → X + Y

Few reactions of alkanes are given below. Identify the name of the reaction which is not correctly matched with the reaction.

In the given reactions: (i) CH₃Br − Na, ether → X − Br₂, hv → Y − Na, ether → Z (ii) CH₃COOH − NaOH, CaO → X − NaOH, CaO → Y − Br₂, hv → Z Identify X, Y and Z.

What is the order of reactivity of hydrogen atoms attached to carbon atom in an alkene?

Which of the following reactions does not show the correct products of the reaction?

Presence of unsaturation in organic compounds can be tested with

An alkene 3-ethylpent-2-ene will give which of the following products on ozonolysis?

The products for the following reactions are (i) CH₃−C−CH₂−CH₃ + alc. KOH → X (ii) CH₃−CH=CH−CH₂ + O₃ → Y + X

The mechanism of the reaction in terms of intermediates or type of reaction is given below. Mark the incorrect option.

The most acidic hydrogen atoms are present in

The correct trend of acidic nature of the following alkynes is

Identify the reagent from the following list which can easily distinguish between 1-butyne and 2-butyne.

Which of the following alkynes can be identified and distinguished from the rest of the alkynes on reaction with ammoniacal silver nitrate to gave a white precipitate?

Monochlorination of toluene in sunlight followed by hydrolysis with aq. NaOH yields

What is ‘A’ in the following reaction?

Arrange the following in decreasing order of their boiling points: (I) n-Butane (II) 2-Methylbutane (III) n-Pentane (IV) 2,2-Dimethylpropane

Stability of alkyl carbocations can be explained by

The carbocation CH₃CHCH₃⁺ is less stable than