91Ó°ÊÓ

Alkanes mainly undergo reactions having (a) free radical reaction (b) ionic elimination (c) electrophillic addition (d) heat/photochemical substitution

Addition of HCN to ethyne in the presence of \(\mathrm{Ba}(\mathrm{CN})_{2}\) as a catalyst gives (a) vinyl cyanide (b) ethyl cyanide (c) 1,1 -dicyanoethane (d) divinyl cyanide

The number of possible enantiomeric pairs that can be produced during monochlorination of 2 -methyl butane are (a) 2 (b) 3 (c) 4 (d) 1

Potassium salt of 2,3 -dimethyl maleic acid on electrolysis gives (a) ethyene (b) propyne (c) 2-butyne (d) 1 -butyne

The reaction of propene with HOCl proceeds via the addition of (a) \(\mathrm{H}^{+}\)in the first step (b) \(\mathrm{Cl}^{+}\)in the first step (c) \(\mathrm{OH}^{-}\)in the first step (d) \(\mathrm{Cl}^{+}\)and \(\mathrm{OH}^{-}\)in a single step

Ethene and ethyne can be distinguished by (a) \(\mathrm{Br}_{2}\) water (b) \(\mathrm{KMnO}_{4}\) solution (c) cuprous chloride solution (d) any of the above

Chloroethane reacts with magnesium in dry ether to form \(\mathrm{X}\). When \(\mathrm{X}\) is hydrolyzed, a carbon compound \(\mathrm{Y}\) and \(Z\) are formed. Which of the following is \(Y\) ? (a) \(\mathrm{C}_{2} \mathrm{H}\) (b) \(\mathrm{C}_{2} \mathrm{H}_{2}\) (c) \(\mathrm{C}_{2} \mathrm{H}_{6}\) (d) \(\mathrm{C}_{6} \mathrm{H}_{6}\)

Acid catalysed hydration of alkenes except ethene leads to the formation of \(\quad\) [2005] (a) primary alcohol (b) secondary or tertiary alcohol (c) mixture of primary and secondary alcohols (d) mixture of secondary and tertiary alcohols