AIPMT 2008 | Solid State Question 33 | Chemistry

This chapter is currently out of syllabus

PREVIOUS NEXT

AIPMT 2008

MCQ (Single Correct Answer)

-1

Out of Syllabus

With which one of the following elements silicon should be doped so as to give p-type of semiconductor?

Selenium

Boron

Germanium

Arsenic

AIPMT 2008

MCQ (Single Correct Answer)

-1

Out of Syllabus

If $$a$$ stands for the edge length of the cubic systems: simple cubic, body centred cubic and face centred cubic, then the ratio of radii of the spheres in these systems will be respectively

$${1 \over 2}a:{{\sqrt 3 } \over 2}a:{{\sqrt 2 } \over 2}a$$

$$1a:\sqrt 3 a:\sqrt 2 a$$

$${1 \over 2}a:{{\sqrt 3 } \over 4}a:{1 \over {2\sqrt 2 }}a$$

$${1 \over 2}a:\sqrt 3 a:{1 \over {\sqrt 2 }}a$$

AIPMT 2007

MCQ (Single Correct Answer)

-1

Out of Syllabus

If NaCl is doped with 10^$$-$$4 mol% of SrCl₂, the concentration of cation vacancies will be (N_A = 6.02 $$ \times $$ 10²³ mol^$$-$$1)

6.02 $$ \times $$ 10¹⁶ mol^$$-$$1

6.02 $$ \times $$ 10¹⁷ mol^$$-$$1

6.02 $$ \times $$ 10¹⁴ mol^$$-$$1

6.02 $$ \times $$ 10¹⁵ mol^$$-$$1

AIPMT 2007

MCQ (Single Correct Answer)

-1

Out of Syllabus

The fraction of total volume occupied by the atoms present in a simple cube is

$${\pi \over {3\sqrt 2 }}$$

$${\pi \over {4\sqrt 2 }}$$

$${\pi \over 4}$$

$${\pi \over 6}$$

PREVIOUS NEXT

NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution