List of top Chemistry Questions asked in GATE XL

Consider the following nucleotide sequence: 5'-GCCGCCAUGGCGUCUGCUAGCUGGCUCGAUCGCGAGCGAUCGUAC GUAUAGUAUGAA-3' Assume canonical initiation, canonical termination, no post-translational modification, and the average molecular mass of an amino acid to be 110 daltons. The theoretical molecular mass of the polypeptide translated from the above nucleotide sequence is _____ daltons. (Answer in integer)
One mole of an ideal gas expands isothermally and reversibly to double its volume. If the expansion work done by the system is 1728.85 J, the temperature of the system is ____ K (rounded off to 2 decimal places).
Given:
Gas constant, \( R = 8.314 \) J·K\(^{-1}\)·mol\(^{-1}\)
The initial rate of a reaction triples when the concentration of a reactant, A, is doubled. The order of the reaction with respect to A is _______(rounded off to 2 decimal places).
The paramagnetic species among the following is/are (Given: Atomic numbers of Cr = 24; Fe = 26; Ni = 28):
Given the standard reduction potentials \((E^\Theta)\) for the half-cell reactions below, the standard Gibbs free energy of the dissolution of silver chloride in water, at 298 K, is ---- J mol\(^{-1}\) (rounded off to the nearest integer).

\[ \text{(Given: Faraday constant, } F = 96500 \text{ C mol}^{-1}; \quad J = C \times V) \]

The standard reduction half-cell reactions are:

\[ \text{AgCl(s) + e}^- \rightarrow \text{Ag(s) + Cl}^-(\text{aq}); \quad E^\Theta = 0.22 \text{ V at 298 K} \] \[ \text{Ag}^+(\text{aq}) + e^- \rightarrow \text{Ag(s)}; \quad E^\Theta = 0.80 \text{ V at 298 K} \]
The ionic product of water at \(40^\circ \mathrm{C}\) is \(2.92 \times 10^{-14} \, \mathrm{M}^2\). The pH of water at \(40^\circ \mathrm{C}\) is _______ (rounded off to 2 decimal places).
The molecule(s) with non-zero dipole moment is/are:
The paramagnetic species among the following is/are (Given: Atomic numbers of Cr = 24; Fe = 26; Ni = 28):
Upon addition of compound ( X ) to an aqueous AgNO(_3) solution, a white precipitate appears instantly. Also, ( X ) does not exhibit geometrical isomerism. The CORRECT option(s) for ( X ) is/are:
Which one among the following structures is the most stable conformer of (Z)-pent-2-ene?
An enzyme-catalyzed conversion of a substrate at 298 K proceeds by a Michaelis-Menten mechanism. The Lineweaver-Burk plot for the analysis of the experimental data has an intercept along the ( y )-axis of ( 0.357 , {mmol}^{-1} , {dm}^{3} , {s} ) and a slope of ( 2.10 , {s} ). The CORRECT Michaelis constant for the reaction is------- (rounded off to 2 decimal places):

Each of the following alkenes undergoes addition reaction with bromine. Under the same reaction conditions, the CORRECT trend in the reaction rates is: 
 

The initial rate of a reaction triples when the concentration of a reactant, ( A ), is doubled. The order of the reaction with respect to ( A ) is _______ (rounded off to 2 decimal places).
One mole of an ideal gas expands isothermally and reversibly to double its volume. If the expansion work done by the system is 1728.85 J, the temperature of the system is _______ K (rounded off to 2 decimal places).
The maximum number of electrons that can be accommodated in the shell with ( n = 2 ) is _______ (in integer). (Given: ( n ) = principal quantum number)

The CORRECT option(s) of ( Y ) for the following reaction is/are: 

The molecules A and B are a pair of ": 
 

The CORRECT order of acidity of the following compounds is: 
 

Among the following, the structure representing histidine is:
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?
The CORRECT order of electronegativity is:
A newly identified viral protein contains one long a-helix spanning 60 amino acid residues. The number of main chain H-bonds formed in this helix is____ (Answer in integer)
Match the metabolic intermediates listed in Column I with their corresponding amino acids given in Column II.
Column IColumn II 
P. a-Ketoglutarate i. Histidine 
Q.Ribose 5-phosphate ii. Glutamate
R. 3-Phosphoglycerate iii.Aspartate
S. Phosphoenolpyruvateiv. Phenylalanine
 v.Serine
The human genetic code is triplet in nature with 64 codons made using four nucleotides. If the human genetic code was doublet in nature, the number of codons theoretically possible from four nucleotides is_____ (Answer in integer)
Which one or more of the following statements is/are correct regarding the transport and retention of proteins in different cell organelles?