Hydrocarbons PYQs - Last 5 Years

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Practice 28 AP EAPCET Chemistry questions from Hydrocarbons. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Chemistry / Organic Chemistry

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Last 5 Years Hydrocarbons Questions

Showing 28 of 28 filtered questions.

Consider the sets I, II and III. Identify the set(s) which is (are) correctly matched.
I. Staggered ethane > eclipsed ethane ..........torsional strain.
II. 2, 2-dimethylbutane > 2-methylpentane ......... boiling point
III. cis-but-2-ene > ...

Which one of the following compounds does not give benzoic acid when treated with alkaline $\mathrm{KMnO}_4$ ?

The empirical formula weight of ' $Z$ ' in the given reaction sequence is
$$ n \text {-propyl bromide } \xrightarrow[\text { Dry ether }]{\mathrm{Na}} X \xrightarrow[\substack{773 \mathrm{~K} \\ 20 \mathrm{~atm}}]{\mathrm{v}_2 \mathrm{O}_5}...

Consider the following
Statement I Kolbe's electrolysis of sodium propionate gives $n$-hexane as product.
Statement II In Kolbe's process $\mathrm{CO}_2$ is liberated at anode and $\mathrm{H}_2$ is liberated at cathode.
Correct answer is

What are $X$ and $Y$ respectively, in the following set of reactions?

The catalyst used for the isomerisation of $n$-alkanes to branched chain alkanes is

\(\text { What are } x \text { and } y \text { in the following reaction sequence? }\)

\(\text { Consider the following sequence of reactions }\)
The incorrect statement about $z$ is

$$ \begin{aligned} &\text { Consider the following reaction sequence }\\ &\text { Vinyl benzene } \xrightarrow[\Delta]{\mathrm{KMnO}_4+\mathrm{KOH}} X \xrightarrow[\Delta]{\mathrm{NaOH}+\mathrm{CaO}} Y \end{aligned} $$
$' Y$ ' can also be f...

When ethyl bromide and $n$-propyl bromide are allowed to react with Na metal in dry ether, the number of different alkanes formed is

Toluene on reaction with the reagent $X$ gave $Y$, which dissolves in $\mathrm{NaHCO}_3$ and when reacted with $\mathrm{Br}_2 / \mathrm{Fe}$ gave $Z$. What are $X$ and $Z$ ?

Which of the following sequence of reagents convert
3- hexene to propane?

In Wurtz-Fittig reaction a compound $X$ reacts with alkyl halide. What is $X$ ?

In Kolbe's electrolysis of sodium propanoate, products formed at anode and cathode are respectively

What are $X$ and $Y$ respectively in the following reaction sequence?

Conversion of $X$ to $Y$ is an example of

A mixture of ethyl iodide and $n$-propyl iodide is subjected to Wurtz reaction. The hydrocarbon which will not be formed is

Hydrolysis of an alkyl bromide $\left(\mathrm{C}_5 \mathrm{H}_{11} \mathrm{Br}\right)$ follows first order kinetics. Reaction of $X$ with Mg in dry ether followed by treatment of $\mathrm{D}_2 \mathrm{O}$ gave $Y$, What is $Y$ ?

What are $X$ and $Y$ respectively in the following reaction sequence?

An alkene $X\left(\mathrm{C}_4 \mathrm{H}_8\right)$ does not exhibit cis-trans is memerisn Reaction of $X$ with $\mathrm{Br}_2$ in the presence of UV light gane $Y$. What is $Y$ ?

An alkene $X\left(\mathrm{C}_4 \mathrm{H}_8\right)$ on reaction with HBr gave $Y\left(\mathrm{C}_4 \mathrm{H}_9 \mathrm{Br}\right)$. Reaction of $Y$ with benzene in the presence of anhydrous $\mathrm{AlCl}_3$ gave Z which is resistant to ox...

The product of which of the following reactions undergo hydrolysis by $\mathrm{S}_{\mathrm{N}} 1$ mechanism?

Styrene on reaction with reagent $X$ gave $Y$ which on hydrolysis followed by oxidation gave $Z . Z$ gives positive 2, 4-DNP test but does not give iodoform test. What are $X$ and $Z$ respectively ?

What are $X$ and $Y$ respectively in the following reaction sequence?
\(\text { Isopentane } \xrightarrow{\mathrm{KMnO}_4} X \xrightarrow{\text { Dehydration }} Y \text { Major }\)

In the Kolbe electrolysis of sodium propanoate, the products $X$ and $Y$ are formed at respected electrodes. What are $X$ and $Y$ ?

\(\text { Which of the following molecule is not aromatic? }\)

Identify the product of the following reaction.

The product formed when a hydrocarbon \(X\) of molecular formula \(\mathrm{C}_6 \mathrm{H}_{10}\) is reacted with sodamide is subjected to ozonolysis, followed by hydrolysis with \(\mathrm{Zn} / \mathrm{H}_2 \mathrm{O}_2\) and upon further ...