NEET Chemistry: Questions 281 - 287 of 1145

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1145 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 281

» Atomic Structure » Heisenberg Uncertainty Principle

MCQ▾

Question

If uncertainty in position and momentum are equal, the uncertainty in velocity is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Question does not provide sufficient data or is vague

Question number: 282

» Equilibrium » Ionic Equilibrium » Acid - Base Equilibria

MCQ▾

Question

0.45 gm. of an acid of mol. wt. 90 was neutralized by 20 ml of 0.5 (N) caustic potash. The basicity of acid is-

Choices

Choice (4) Response

a.

1

b.

4

c.

2

d.

3

Question number: 283

» Atomic Structure » Spin Quantum Number

MCQ▾

Question

The maximum number of atomic orbitals associated with a principal quantum number 5 is -

Choices

Choice (4) Response

a.

12

b.

25

c.

9

d.

16

Question number: 284

» P-Block Elements Group 13 to 18 » Group 17 » Oxides and Oxoacids of Halogens

MCQ▾

Question

Which of following oxyacid of chlorine is formed on shaking chlorine water with freshly precipitated yellow oxide of mercury?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 285

» P-Block Elements Group 13 to 18 » Group 17 » Oxides and Oxoacids of Halogens

MCQ▾

Question

Euchlorine is

Choices

Choice (4) Response

a.

chlorine of europium

b.

a mixture of Cl2 and ClO2

c.

a mixture of Cl2 and Cl2O7

d.

obtained by heating per chlorate with concentrated HCl

Question number: 286

» P-Block Elements Group 13 to 18 » Group 17 » Hydrogen Halides

MCQ▾

Question

Which of the following hydrogen halide is least volatile in nature?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 287

» P-Block Elements Group 13 to 18 » Group 18 » Oxides of Xenon

MCQ▾

Question

Xenon hexafluoride reacts with silica to form a xenon compound X. The oxidation state of Xe in X is?

Choices

Choice (4) Response

a.

+6

b.

+2

c.

+4

d.

0

f Page
Sign In