List of top Chemistry Questions asked in GATE XL

The CORRECT order of electronegativity is
The CORRECT option(s) of Y for the following reaction is/are
The CORRECT option(s) of Y for the following reaction is/are
Which one of the following is the CORRECT representation of the variation of the Gibbs free energy (G) of a substance with temperature (T) at constant pressure?
Among the following, the structure representing histidine is
The molecules A and B are a pair of___
The molecules A and B are a pair of

Match the tasks given in Group I with the associated techniques conventionally used as listed in Group II.

Compound $X$ gives alcohol $P$ as the major product for the reaction: \;i) CH$_3$MgBr ii) H$_3$O$^+$. Suitable option(s) for $X$ is/are. ($P$ is the benzylic tertiary alcohol bearing two CH$_3$ groups) 

Compounds P and Q undergo E2 elimination with reaction rate constants of \(k_1\) and \(k_2\), respectively, as shown below. Which is/are the CORRECT option(s)? 

Considering cyclobutane to be planar, the number of planes of symmetry in the following compound is _______ (in integer).

Among the following statements, which is/are TRUE regarding the replication of DNA?
Which of the following technique(s) can be used to separate proteins according to their molecular weights from a mixture of proteins?
A linear DNA fragment of 5 kb gives 2.5 kb, 1.5 kb, and 1.0 kb fragments on complete EcoRI digestion; the same 5 kb fragment gives 3.5 kb and 1.5 kb fragments on complete XbaI digestion. What set of fragments will appear when the 5 kb piece is fully digested with EcoRI and XbaI simultaneously?
The dipole moment ($\mu$) of BrF is 1.42 D and the bond length is 176 pm. The atomic charge distribution ($q$) in the molecule is _______ (rounded off to two decimal places). (Given: 1 D = $3.34 \times 10^{-30}$ C m; electronic charge $e = 1.60 \times 10^{-19}$ C).