Hydrocarbons

Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains

Polysubstitution is a major drawback in:

Benzene on nitration gives nitrobenzene in presence of HNO₃ and H₂SO₄ mixture, where :

Which one of the following has the minimum boiling point?

At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% O₂ by volume for complete combustion. After combustion the gases occupy 345 mL. Assuming that the water formed is in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydrocarbon is:

When 2-butyne is treate with H₂/Lindlar's catalyst, compound X is produced as the major product and when treated with Na/liq. NH₃ it produces Y as the major product Which of the following statements is correct ?

Given below are two statements : Statement I : The presence of weaker $\pi$-bonds make alkenes less stable than alkanes. Statement II : The strength of the double bond is greater than that of carbon-carbon single bond. In the light of the above statements, choose the correct answer from the options given below :

The hydrocarbon which can react with sodium in liquid ammonia is

The correct order for acid strength of compounds : CH $\equiv$ CH, CH₃–C $\equiv$ CH and CH₂ = CH₂ is as follows

Match List - I with List - II : List - I (Chemicals) (a) Alcoholic potassium hydroxide (b) Pd/BaSO₄ (c) BHC (Benzene hexachloride) (d) Polyacetylene List - II (Use / Preparation / Constituent) (i) Electrodes in batteries (ii) Obtained by addition reaction (iii) Used for $\beta$ - elimination reaction (iv) Lindlar's catalyst Choose the most appropriate match :

The incorrect statement regarding ethyne is

On mixing a certain alkane with chlorine and irradiating it with ultravioletlight, it forms only one monochloroalkane. This alkane could be

Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is

2 methylbutane on reacting with bromine in the presence of sunlight gives mainly

5 L of an alkane requires 25 L of oxygen for its complete combustion. If all volumes are measured at constant temperature and pressure, the alkane is :

Given below are two statements : Statement I : 2-methylbutane on oxidation with KMnO₄ gives 2-methylbutan-2-ol. Statement II : n-alkanes can be easily oxidised to corresponding alcohols with KMnO₄. Choose the correct option :

Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction : CH₄ + I₂ $\mathrel{\mathop{\kern0pt\rightleftharpoons} \limits_{{\mathop{\rm Re}\nolimits} versible}^{hv}}$ CH₃ $-$ I + HI

$\stackrel{\bullet}{\mathrm{Cl}}+\mathrm{CH}_{4} \rightarrow \mathrm{A}+\mathrm{B}$ A and B in the above atmospheric reaction step are :

Given below are two statements : Statement (I) : $\mathrm{S}_{\mathrm{N}} 2$ reactions are 'stereospecific', indicating that they result in the formation of only one stereo-isomer as the product. Statement (II) : $\mathrm{S}_{\mathrm{N}} 1$ reactions generally result in formation of product as racemic mixtures. In the light of the above statements, choose the correct answer from the options given below :