GATE CY exam:gate PYQs & Answers — Page 55

Questions 541–550 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 55 of 65

According to Eyring transition state theory for a bimolecular reaction, the activated complex has

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no vibrational degrees of freedom.

vibrational degrees of freedom but they never participate in product formation.

one high frequency vibration that leads to product formation.

one low frequency vibration that leads to product formation.

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Based on Wade’s rule, the structure-type of

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closo

nido

arachno

hypho

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The coordination geometries around the copper ion of plastocyan (a blue-copper protein) in oxidized and reduced form, respectively, are

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tetrahedral and square-planar

square-planar and tetrahedral

distorted tetrahedral for both

ideal tetrahedral for both

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The water exchange rates for the complex ions follow the order

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The lowest energy

transition of the complexes follow the order

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The symmetry label of valence p orbitals of a metal ion in an octahedral ligand field is

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The bond angle (Ti–C–C) in the crystal structure of

—CH₂

is severely distorted due to

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hydrogen-bonding interaction

agostic interaction

steric bulk of the phosphine ligand

higher formal charge on metal

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The molar heat capacity of a substance is represented in the temperature range 298 K to 400 K by the empirical relation

, where b is a constant. The molar enthalpy change when the substance is heated from 300 K to 350 K is 2 kJ mol⁻¹. The value of b is __________ J K⁻² mol⁻¹. (Up to two decimal places)

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For low partial pressure of ozone (O₃), the adsorption of ozone on graphite surface is fully dissociative in nature, and follows Langmuir isotherm. Under these conditions, the dependence of the surface coverage of graphite (θ) on partial pressure of ozone (P₍O₃₎) is given by θ ∝ (P₍O₃₎)ˣ, the value of x is____________. (Up to two decimal places)

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For the radioactive isotope ¹³¹I, the time required for 50% disintegration is 8 days. The time required for the 99.9% disintegration of 5.5 g of ¹³¹I is ________ days. (Up to one decimal place)

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GATE CY exam:gate PYQs

Question 11

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Question 20