GATE CY 2026 Paper 1 — page 11

Questions 31–33 of 65. Imported answers require review unless explicitly marked reviewed.

A 0.005 M solution of compound X transmits 80% of the incident light of wavelength (λ) 500 nm. The absorbance of 0.01 M solution of X is _____ (rounded off to three decimal places).

(Given: path length = 1.0 cm)

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The microwave spectrum of gaseous HF consists of a series of lines separated by 41.11 cm

. The bond length (in Å) of HF is _____ (rounded off to two decimal places).

(Given: Atomic mass (in amu): H = 1.008, F = 18.998; 1 amu = 1.661 × 10

kg; h = 6.626 × 10

J s; c = 2.998 × 10

m s

)

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In a

H NMR spectrum obtained from a spectrometer operating at a magnetic field of 14.1 T, two resonances are observed at 1.25 ppm and 5.75 ppm. The separation between the two resonances (in Hz) is _____ (rounded off to one decimal place).

(Given: gyromagnetic ratio (γ) of H = 2.675 × 10

)

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2026 · Paper 1

Question 31

Question 32

Question 33