Chemistry
GATE CY topic:chemical-sciences PYQs
Build your understanding with focused practice from past exam papers.
Questions 191–200 of 650. Imported answers require independent review unless marked reviewed.
Question 61
Open questionCYNAT2 marksNeeds review
In the given reaction sequence, the amount of R produced (in g) is ____.
Benzene (7.8 g)
P
Q
R(Given: molar mass (in g mol⁻¹) of H = 1, C = 12, N = 14, O = 16, and S = 32)
(rounded off to two decimal places)
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Open questionCYNAT2 marksNeeds review
The wave function of a particle in a cubic box (of side
) is given by
The ratio of the energy of the state corresponding to the above wave function to the ground state energy is ____.
(rounded off to the nearest integer)
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Open questionCYNAT2 marksNeeds review
and
are normalized eigenfunctions of a Hermitian operator.
and
.The value of
is __.(rounded off to the nearest integer)
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Open questionCYNAT2 marksNeeds review
2 mol of a monatomic ideal gas with initial volume of 5 L and pressure 10 bar undergoes an irreversible adiabatic expansion against a constant final pressure of 1 bar. The final volume (in L) is ____.
(Given: R = 8.314 × 10⁻² L bar mol⁻¹ K⁻¹)
(rounded off to one decimal place)
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Open questionCYNAT2 marksNeeds review
The following figure shows an experimental liquid-liquid phase diagram of phenol and water at the vapor pressure of the system. The total amount of phenol and water (in mol) present in the phenol-rich phase when 5 mol of water was shaken with 5 mol of phenol at 40 °C is ____.
(rounded off to one decimal place)
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Open questionGAMCQ1 markNeeds review
“I cannot support this proposal. My ______ will not permit it.”
Your answerChoose one option.
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Open questionGAMCQ1 markNeeds review
Courts : ______ : : Parliament : Legislature
(By word meaning)
Your answerChoose one option.
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Open questionGAMCQ1 markNeeds review
What is the smallest number with distinct digits whose digits add up to 45?
Your answerChoose one option.
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Open questionGAMCQ1 markNeeds review
In a class of 100 students,
(i) there are 30 students who neither like romantic movies nor comedy movies,
(ii) the number of students who like romantic movies is twice the number of students who like comedy movies, and
(iii) the number of students who like both romantic movies and comedy movies is 20.
How many students in the class like romantic movies?
Your answerChoose one option.
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Open questionGAMCQ1 markNeeds review
How many rectangles are present in the given figure?
Your answerChoose one option.
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