Hydrocarbons · JEE Main previous year questions

2005 2 questions

1. Q1732005 · 28 Apr 2005 · Shift 1

   Acid catalyzed hydration of alkenes except ethene leads to the formation of

   1. A.primary alcohol
   2. B.secondary or tertiary alcohol
   3. C.mixture of primary and secondary alcohols
   4. D.mixture of secondary and tertiary alcohols
   Show answer

   Answer: D

2. Q1752005 · 28 Apr 2005 · Shift 1

   Benzene and toluene form nearly ideal solutions. At $20^{\circ }\mathrm{C}$, the vapour pressure of benzene is $75\mathrm{torr}$ and that of toluene is $22\mathrm{torr}$. The partial vapour pressure of benzene at $20^{\circ }\mathrm{C}$ for a solution containing $78\mathrm{g}$ of benzene and $46\mathrm{g}$ of toluene in $\mathrm{torr}$ is

   1. A.$50$
   2. B.$25$
   3. C.$53.5$
   4. D.$37.5$
   Show answer

   Answer: A