Chemistry
GATE CY year:2026 PYQs
Build your understanding with focused practice from past exam papers.
Questions 51–60 of 65. Imported answers require independent review unless marked reviewed.
Question 51
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Chymotrypsin selectively cleaves a peptide at the carboxyl side of the amino acids having an aryl side chain. The tripeptide(s) formed on hydrolysis of the peptide, Val-Phe-Leu-Met-Tyr-Pro-Gly-Trp-Cys, with chymotrypsin is(are)
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Consider the given pairs of complex ions. The correct pair(s) in which each complex ion exhibits three spin-allowed d-d transitions (excluding those arising due to distortions) is(are)
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The correct statement(s) about the structure of metal oxides is(are)
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The pair(s) of lanthanide ions whose ground state term symbols have same spin multiplicity (2S+1) and orbital angular momentum (L), but different spin-orbit coupling (J) is(are)
(Given: Atomic number: Nd = 60; Pm = 61; Ho = 67; Er = 68)
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The correct statement(s) about enterobactin (ent) is(are)
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The correct statement(s) for a surface catalyzed unimolecular gaseous reaction is(are)
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The correct statement(s) for a surface catalyzed unimolecular gaseous reaction is(are)
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On heating, the compound Z undergoes a series of 1,5-H/D shifts to give a mixture of its isomers. The total number of isomers present in the mixture (including Z) is ______ (in integer).

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The sum of bond orders of metal–metal bonds in [Os₂Cl₈]²⁻, [Re₂Cl₈]²⁻, [W₂(NMe₂)₆] and [Mo(C₃H₅)(CO)₂]₂ is _____ (in integer).
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The sum of the number of α-particles and β-particles emitted in the nuclear decay process, ²³⁸₉₂U → ²⁰⁶₈₂Pb, is _____ (in integer).
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