List of top Chemistry Questions on Hydrocarbons asked in COMEDK UGET

The product formed in the following reaction is:
Assertion(A): Propene reacts with HBr in presence of organic peroxide gives 1-bromopropane.
Reason(R): The reaction occurs through carbocation intermediate.
Identify the final product formed when benzenamine reacts with the given reagents in the sequential order as: (i) $\mathrm{(CH_3CO)_2O}$/Pyridine, (ii) Conc. $\mathrm{HNO_3 + H_2SO_4}$ followed by $\mathrm{H_3O^+}$, (iii) $\mathrm{NaNO_2/HCl}$ (273 K) followed by $\mathrm{H_3PO_2(aq)}$.
What is the major product [P3] formed when n-Hexane undergoes the given series of reactions?
n-Hexane $\xrightarrow[\text{20 atm, 773 K}]{\text{V}_2\text{O}_5}$ [P] $\xrightarrow[\Delta]{\text{C}_2\text{H}_5\text{Cl, Anhyd. AlCl}_3}$ [P2] $\xrightarrow[\text{333 K}]{\text{Conc. HNO}_3 + \text{H}_2\text{SO}_4}$ [P3]}
What is the major product [Z] formed when compound [C] undergoes the following reactions?
[C] (Cyclohexyl bromide) $\xrightarrow[\Delta]{\text{alc. KOH}$ [X] $\xrightarrow{\text{HCl}}$ [Y] $\xrightarrow{\text{(i) alc. KCN, (ii) dil. HCl}}$ [Z]}
Arrange in increasing order of boiling points: (A) 2,2-dimethylpropane, (B) 2-methylbutane, (C) n-pentane, (D) n-butane.
Which one of the following is the product (Z) formed at the end of the given reaction:
\[ \text{Propan-1-ol} + SOCl_2 \rightarrow [X] \]
\[ [X] + HC \equiv C^-Na^+ \rightarrow [Y] \]
\[ [Y] + H_2SO_4/HgSO_4,\; 330K \rightarrow [Z] \]
Identify X, Y and Z formed in the reaction:
Consider the following reaction
\[ \text{Propyne} + CH_3MgBr \xrightarrow{\text{dry ether}} X \]
Identify \( X \) from the following.
Identify the final product [Y] in the following reaction.

Which of the following alkene on reductive ozonolysis gives ketones only as the product
What would be the major product formed in the reaction?
\[ CH_3-CH(CH_3)-CH_2Cl \xrightarrow[(CH_3)_3CO^-]{\text{heat}} X \]
Identify the Alkane (molecular formula \( C_8H_{18} \)) which yields only a single monochloride on Chlorination in the presence of sunlight.
The correct order of reactivity of halogens with alkanes is :
Match the reactions given in Column I with the major product formed given in Column II.

The number of grams of bromine that will completely react with 5 g of pentene is: (Atomic mass of Br = 80 u)
When one mole of a hydrocarbon \( C_aH_b \) undergoes complete combustion, it requires 7.5 moles of \( O_2 \) and results in the production of 6 moles of \( CO_2 \). Calculate the values of \( a \) and \( b \).
An organic compound "A" reacts with \( \text{Zn}/\text{Hg} / \text{Conc. HCl} \) to form p-Xylene. It reduces Tollen's reagent and on oxidation with \( \text{KMnO}_4 / H^+ \) it yields 1,4-benzenedicarboxylic acid. Identify compound A.
Toluene when reacted with \( \text{Cl}_2 \) gas at 385 K forms a product X which undergoes further reaction with Sodium ethoxide to yield product Y. The structure of Y is ............

Complete the following 2 reactions A & B by choosing appropriate reactants [X] & [Y].
An Alkene "X" on reaction with hot acidified \( \text{KMnO}_4 \) gave a mixture of Ethanoic acid and Propanone. Identify "X".