Hydrocarbons

In the following reaction sequence, Q, R, S and T are the major products.

The correct statement(s) about Q, R, S and T is(are)

Treatment of buta-1,3-diyne with $\ce{NaNH2}$ (2 equivalents), followed by reaction with excess of trans-$\ce{CH3-CH=CH-CH2-Br}$ gives X as the major product. The maximum number of carbon atoms that are collinear (in a straight line) in X is ____.

The List-II contains products obtained from the reaction of compounds in List-I with $\ce{O3}$/Zn-$\ce{H2O}$ followed by cyclization (via more stable enolate) in the presence of aqueous NaOH. Match each entry in List-I with appropriate entry in List-II and choose the correct option.

Natural rubber on complete ozonolysis ($\ce{O3}$/Zn-$\ce{H2O}$) gives compound X as the major product. X gives positive iodoform and Tollen's tests. X on heating with aqueous NaOH gives Y as the major product. Y is

The volume of 1 M aqueous $\ce{H2SO4}$ required to completely neutralize the ammonia evolved from 5.72 g of L in Kjeldahl's method of nitrogen estimation is ____ mL.

For the given molecule, "$x$", the preferred site for the attack of the electrophile is :

Consider the isomers of hydrocarbon with molecular formula $\ce{C5H10}$. These isomers do not decolourise $\ce{KMnO4}$ solution. These isomers are subjected to chlorination with chlorine in presence of light to give monochloro compounds. The total number of monochloro compounds (structural isomers only) formed is ________.

One mole of an alkane ($x$) requires 8 mole oxygen for complete combustion. Sum of number of carbon and hydrogen atoms in the alkane ($x$) is ________.

The compound (X) on
(i) on heating in the presence of anhydrous $\ce{AlCl3}$ and HCl gas gives 2,4-dimethyl pentane
(ii) aromatization gives toulene and
(iii) cyclisation gives methyl cyclohexane
The correct name of compound (X) is :

Identify compounds A and E in the following reaction sequence.

An alkene (X) on ozonolysis followed by reduction gives following products.

$\ce{HCHO}$ (2 moles), $\ce{OHC-CO-CHO}$, $\ce{CH3-CO-CO-CO-CH3}$

The alkene (X) is:

Consider the following sequence of reactions to give the major product (X)

P g of the major product (X) formed is reacted with $\ce{NaHCO3}$ solution to liberate a gas which occupied 11.2 dm³ at STP.
P = ________ g.
(Given molar mass in g mol$^{-1}$ H:1, C:12, O:16, Cl:35.5)

Compound (X) is subjected to the sequence of reactions as shown above. Molar mass of the major product (Y) formed is ________ g mol$^{-1}$.
(Given molar mass in g mol$^{-1}$ C:12, H: 1, O: 16)

"P" is a hydrocarbon of molecular formula:- $\ce{C8H14}$. On ozonolysis, "P" forms "Q". "Q" on treatment with alkali under reflux condition produces "R", which on treatment with $\ce{I2}$/NaOH gives a yellow precipitate. Acidification of the solution gives "S". The structure of "S" is given below:-

The correct structure of "P" is

For the following Friedel Craft's alkylation reaction, which of the statements are correct?

A. Major product is n-propyl benzene.

B. iso-propyl carbocation intermediate is also generated.

C. Multiple substitution is inevitable.

D. Introducing electron-donating substituent on benzene will not produce any alkyl benzene.

Choose the correct answer from the options given below:

Consider compounds A, B and C with following structural formulae
A = $\ce{CH3-CH2-CH2-CH2-CH2-OH}$
B = $\ce{CH2=CH-CH2-CH2-CH3}$
C = $\ce{HO-CH2-CH2-CH(OH)-CH3}$
For the conversion of B from A, reagent (D) required is ________ and structural formula of product (E) obtained when C undergoes same reaction using excess reagent (D) is ________.

IUPAC name of the some alkenes are given below.
Find out the correct stability order.

A. 2-Methylbut-2-ene

B. cis-But-2-ene

C. 2, 3-Dimethylbut-2-ene

D. Prop-1-ene

Choose the correct answer from the options given below :

Identify the correct IUPAC name of hydrocarbon ($x$) containing three primary carbon atoms and with molar mass 72 g mol$^{-1}$.

RMgI when treated with ice cold water liberated a gas which occupied 1.4 dm³/g at STP. The gas produced is further reacted with iodine in presence of $\ce{HIO3}$ to give compound (X). Compound (X) in presence of Na and dry ether produced compound (Y). Molar mass of compound (Y) is ________ g mol$^{-1}$. (Nearest integer)

$R_f$ value for 2-methylpropene in a solvent system (Ethyl acetate + ether) is 0.42. 2-methylpropene is treated with dilute $\ce{H2SO4}$ to give major organic product (X). $R_f$ value for (X) in the same solvent system under identical condition will be: