GATE XL 2021 Paper 1 — page 8

Questions 22–24 of 125. Imported answers require review unless explicitly marked reviewed.

Paper practice 125 questionsPage 8 of 42

Given the following standard heats of formation,

, and

, the average bond enthalpy of a P–H bond in PH₃(g) is ________ kJ mol⁻¹ (rounded off to one decimal place).

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The total number of possible geometrical isomer(s) for [PtBrCl(NH₃)(py)]⁰ is ________. (Given: py = Pyridine and atomic number of Pt = 78)

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Given the standard reduction potentials,

and

, the potential of the following cell

at 25 °C is ________ V (rounded off to two decimal places). (Given: Faraday constant = 96500 C mol⁻¹, Gas constant R = 8.314 J K⁻¹ mol⁻¹)

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2021 · Paper 1