KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Chemistry: Questions 95 - 99 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: 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

Question number: 96

» Equilibrium » Ionic Equilibrium » pH Scale

Appeared in Year: 2010

MCQ▾

Question

An aqueous solution of has a pH of 2.0 when water is added to increase the pH to 5.0 the hydrogen ion concentration –

Choices

Choice (4) Response

a.

Decreases three-fold

b.

Remains the same

c.

Increases three-fold

d.

Decreases thousand-fold

Question number: 97

» P-Block Elements Group 13 to 18 » Group 15 » Nitrogen

Appeared in Year: 2014

MCQ▾

Question

The isoelectronic pair is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 98

» Hydrocarbons » Isomerism

Appeared in Year: 2009

MCQ▾

Question

among the four compounds:

  1. acetone,
  2. propanol,
  3. methyl acetate
  4. Propionic acid,

Two that are isomeric are:

Choices

Choice (4) Response

a.

Methyl acetate and propanol

b.

Propionic acid and acetone

c.

propionic acid and methyl acetate

d.

Methyl acetate and acetone

Question number: 99

» States of Matter » Gaseous State » Dalton's Law of Partial Pressure

Appeared in Year: 2011

MCQ▾

Question

Two balloons A and B containing 0.2 mole and 0.1 mole of helium at room temperature and 2.0 atm, respectively, are connected. When equilibrium is established, the final pressure of He in the system is-

Choices

Choice (4) Response

a.

1.5 atm

b.

1.0 atm

c.

0.5 atm

d.

2.0 atm

f Page
Sign In