List of top Organic Chemistry Questions asked in GATE CY

The shapes of the compounds ClF\(_3\), XeOF\(_2\), N\(_3^-\) and XeO\(_3\)F\(_2\) respectively, are:
The change in enthalpy (\( \Delta H \)) for the reaction
\[ 2 \, P (s) + 3 \, Br_2 (l) \rightarrow 2 \, PBr_3 (l) \] is -243 kJ. In this reaction, if the amount of phosphorus consumed is 3.1 g, the change in enthalpy (rounded off to two decimal places) is \(\underline{\hspace{2cm}}\) kJ.
A reversible heat engine absorbs 20 kJ of heat from a source at 500 K and dissipates it to the reservoir at 400 K. The efficiency of the heat engine is \(\underline{\hspace{2cm}}\) %.
Acceptable wavefunctions for a quantum particle must be:
A correct example of a nucleotide is:
An organic compound exhibits the [M]+, [M+2]+, and [M+4]+ peaks in the intensity ratio 1:2:1 in the mass spectrum, and shows a singlet at \( \delta \) 7.49 in the \( ^1H \) NMR spectrum in CDCl\(_3\). The compound is: