GATE CY format:nat PYQs & Answers

Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.

Questions 1–10 of 166. Imported answers require independent review unless marked reviewed.

Topic practice 166 questionsPage 1 of 17

The difference in the number of gauche interactions present in diaxial and diequatorial chair conformations of trans-1,2-dimethylcyclohexane is _____ (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The total number of symmetry operations (order, h) present in the point group of [PdCl₆]²⁻ is x and that in trans-[PdBr₂Cl₄]²⁻ is y. The value of x − y is _____ (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

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)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

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

)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

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

)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The maximum work (|W

|, in kJ) that can be obtained by complete combustion of 1.0 mol of CH

at constant pressure and 25 °C is _____ (rounded off to one decimal place).

(Given: ΔS = −241.60 J K

mol

; ΔH = −890.0 kJ mol

; R = 8.314 J mol

)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

If the ionic mobility of Ag

ion in a very dilute aqueous solution of AgNO

at 298 K is y × 10

, then the value of y is _____ (rounded off to two decimal places).

(Given: viscosity of water at 298 K = 8.94 × 10

kg m

; k = 1.38 × 10

J K

; F = 96500 C mol

; R = 8.314 J mol

; Stokes radius of Ag

= 0.15 nm)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The correct statement(s) for a surface catalyzed unimolecular gaseous reaction is(are)

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

On heating, the compound Z undergoes a series of 1,5-H/D shifts to give a mixture of its isomers. The total number of isomers present in the mixture (including Z) is ______ (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The sum of bond orders of metal–metal bonds in [Os₂Cl₈]²⁻, [Re₂Cl₈]²⁻, [W₂(NMe₂)₆] and [Mo(C₃H₅)(CO)₂]₂ is _____ (in integer).

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE CY format:nat PYQs

How to practice format:nat

Question 29

Question 30

Question 31

Question 32

Question 33

Question 34

Question 35

Question 57

Question 58

Question 59