Chemistry
GATE CY Structure PYQs
Build your understanding with focused practice from past exam papers.
Questions 41–46 of 46. Imported answers require independent review unless marked reviewed.
Question 50
Open questionCYNAT2 marksNeeds review
The π electrons in benzene can be modeled as particles in a ring that follow Pauli’s exclusion principle. Given that the radius of benzene is 1.4 Å, the longest wavelength of light that is absorbed during an electronic transition in benzene is __________ nm. (Up to one decimal place. Use mₑ = 9.1×10⁻³¹ kg, h = 6.6×10⁻³⁴ J s, c = 3.0×10⁸ m s⁻¹)
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Open questionCYMCQ1 markNeeds review
The wavelength associated with a particle in one-dimensional box of length
is (
refers to the quantum number)Your answerChoose one option.
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Open questionCYNAT1 markNeeds review
The lowest energy of a quantum mechanical one-dimensional simple harmonic oscillator is 300 cm
. The energy (in cm
) of the next higher level is ________________Log in to check the answer
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Open questionCYNAT2 marksNeeds review
Assume 1,3,5-hexatriene to be a linear molecule and model the π electrons as particles in a one-dimensional box of length 0.70 nm. The wavelength (in nm) corresponding to the transition from the ground-state to the first excited-state is __________
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Open questionCYNAT2 marksNeeds review
The angle of orientation (in degrees) of the angular momentum vector with respect to z-axis for
and
state of H-atom is __________ (up to two decimal places)Log in to check the answer
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Open questionCYNAT2 marksNeeds review
represents a normalized molecular orbital constructed from two different atomic orbitals
and
that form an orthonormal set. The value of
is ______ (up to two decimal places)Log in to check the answer
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