KVPY Stream-SA (Class 11) Chemistry: Questions 91 - 95 of 133

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 133 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 150.00 or

Question number: 91

» Atomic Structure » Bohr Model of Hydrogen Atom

Appeared in Year: 2014

MCQ▾

Question

The radii of the first Bohr orbit of O ( rO ), F ( rF ) and Ne ( rNe ) are in the order

Choices

Choice (4) Response

a.

rO > rF > rNe

b.

rO < rNe < rF

c.

rF > rO > rNe

d.

rNe < rF < rO

Question number: 92

» Atomic Structure » Thomson and Rutherford Atomic Models

MCQ▾

Question

Who discovered electron and neutron?

Choices

Choice (4) Response

a.

Chadwick and J. J. Thomson

b.

E. Goldstein and J. J. Thomson

c.

J. J. Thomson and Chadwick

d.

J. J. Thomson and E. Goldstein

Question number: 93

» Atomic Structure » Quantum Mechanical Model of Atom

MCQ▾

Question

Which of the following set of quantum numbers are permitted?

Choices

Choice (4) Response

a.

n = 3, = 2, m =-2, s =+1/2

b.

n = 2, =2, m =+l, s = -1/2

c.

n = 3, ℓ = 2, m =-l, s = 0

d.

n = 2, = 3, m =+l, s =- 1/2

Question number: 94

» Basic Concepts in Chemistry » Physical Quantities and Measurements

Appeared in Year: 2012

MCQ▾

Question

mong the quantities, density (ρ), temperature (T), enthalpy (H), heat capacity (Cp), volume (V) and pressure (P), a set of intensive variables are:

Choices

Choice (4) Response

a.

(ρ, T, H)

b.

(H, T, V)

c.

(ρ, T, P)

d.

(V, T, Cp)

Question number: 95

» Atomic Structure » Nature of Electromagnetic Radiation

Assertion-Reason▾

Assertion (Ꭺ)

Splitting of the spectral lines in the presence of magnetic field known as stark effect.

Reason (Ꭱ)

Line spectrum is simplest for hydrogen atom.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Sign In