NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 512 - 518 of 1259

Access detailed explanations (illustrated with images and videos) to 1259 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 500.00 or

How to register?

Question number: 512

» States of Matter » Solid State » Imperfection in Solids

Edit
MCQ▾

Question

Which of the following is not happened as the consequence of Shottky defect?

Choices

Choice (4)Response

a.

Crystalline stability decrease

b.

Entropy increases

c.

No change in density

d.

All of the above

Question number: 513

» States of Matter » Solid State » Voids

Edit
MCQ▾

Question

What is the general formula of compound having spinel structure?

Choices

Choice (4)Response

a.

b.

c.

AB2O3

d.

Question number: 514

» States of Matter » Solid State » Calculations Involving Unit Cell Parameters

Edit
MCQ▾

Question

The unit cell cube length for LiCl is 5.14 A°. Assuming anion-anion contact, calculate the ionic radius for chloride ion?

Choices

Choice (4)Response

a.

1.45 A°

b.

2.45 A°

c.

2.34 A°

d.

1.82 A°

Question number: 515

» States of Matter » Solid State » Classification of Solids

Edit
MCQ▾

Question

Which one of the following has highest melting point?

Choices

Choice (4)Response

a.

Covalent crystal

b.

Amorphous crystal

c.

Molecular crystal

d.

Ionic crystal

Question number: 516

» States of Matter » Solid State » Electrical, Magnetic and Dielectric Properties

Edit
MCQ▾

Question

When Arsenic is dopped to Germanium, what will be the resulting semiconductor?

Choices

Choice (4)Response

a.

Intrinsic semiconductor

b.

n-semiconductor

c.

p-type semiconductor

d.

Question does not provide sufficient data or is vague

Question number: 517

» States of Matter » Solid State » Packing in Solids (Fcc, Bcc and Hcp Lattices)

Edit
MCQ▾

Question

Which of the following ionic salts has the wurtzite type of crystal structure?

Choices

Choice (4)Response

a.

CaO

b.

ZnS

c.

NaCl

d.

KBr

Question number: 518

» States of Matter » Solid State » Covalent and Metallic Solids

Edit
MCQ▾

Question

With increasing temperature the electrical conductivity in metallic crystals is?

Choices

Choice (4)Response

a.

Decreases

b.

Do not effect

c.

Increases

d.

Question does not provide sufficient data or is vague

Developed by: