Hydrocarbons

An alkane (Y) requires 8 moles of oxygen for complete combustion and on chlorination with $\mathrm{Cl_2}/h\nu$, (Y) gives only one monochlorinated product (Z). The total number of primary carbon atoms in (Y) is ______.

The compound (X) on (i) on heating in the presence of anhydrous $\mathrm{AlCl_3}$ 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 :

Styrene (X) is treated in sequence with (i) $\mathrm{Br_2/CHCl_3}$, (ii) $\mathrm{NaNH_2}$ excess, (iii) $\mathrm{CH_3I}$, (iv) $\mathrm{H_2}$, Na/$\mathrm{NH_3}$ ($l$) to give the major product (Y). 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)

For the following Friedel Craft's alkylation reaction, which of the statements are correct? Benzene + 1-chloropropane $\xrightarrow{\text{Anhydrous }\mathrm{AlCl_3}}$ Alkylbenzene. 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:

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 :

Given below are two statements: Statement I: Methane can be prepared by decarboxylation of sodium ethanoate, Kolbe's electrolysis of sodium acetate and reaction of $\mathrm{CH_3MgBr}$ with water. Statement II: Methane cannot be prepared from unsaturated hydrocarbons and by Wurtz reaction. In the light of the above statements, choose the correct answer from the options given below

n-Butane on monochlorination under photochemical condition gives an optically active compound “P”. “P” on further chlorination gives dichloro compounds. The number of dichloro compounds obtained (ignore stereoisomers) is :

Given below are two statements: Statement I: One mole of propyne reacts with excess of sodium to liberate half a mole of $\mathrm{H_2}$ gas. Statement II: Four g of propyne reacts with $\mathrm{NaNH_2}$ to liberate $\mathrm{NH_3}$ gas which occupies 224 mL at STP. In the light of the above statements, choose the most appropriate answer from the options given below:

The alkane from below having two secondary hydrogens is :