AIIMS 2019 | Chemical Bonding and Molecular Structure Question 1 | Chemistry

Which of the following, number of lone pair at central atom zero $$\mathrm{XeO}_3, \mathrm{XeO}_2 \mathrm{~F}_2, \mathrm{XeO}_4, \mathrm{XeO}_3 \mathrm{~F}_2, \mathrm{XeF}_6$$ ?

Zero

AIIMS 2019

MCQ (Single Correct Answer)

-0.33

Which is least soluble?

Na$$_2$$S

MgS

MgCl$$_2$$

NaCl

AIIMS 2019

MCQ (Single Correct Answer)

-0.33

Assertion : $$\mathrm{BO}_3^{-3}$$ and $$\mathrm{SO}_3^{-2}$$ are not isostructural.

Reason : In $$\mathrm{SO}_3^{2-}$$ sulphur has one lone pair of electron.

If both assertion and reason are true and reason is the correct explanation of assertion.

If both assertion and reason are true, but reason is not the correct explanation of assertion.

If assertion is true, but reason is false.

If both assertion and reason are false.

AIIMS 2018

MCQ (Single Correct Answer)

-0.33

AIIMS 2018 Chemistry - Chemical Bonding and Molecular Structure Question 3 English

X and Y respectively are

AIIMS 2018 Chemistry - Chemical Bonding and Molecular Structure Question 3 English Option 2

AIIMS 2018 Chemistry - Chemical Bonding and Molecular Structure Question 3 English Option 3

AIIMS 2018 Chemistry - Chemical Bonding and Molecular Structure Question 3 English Option 4

Questions Asked from MCQ (Single Correct Answer)

AIIMS 2019 (3) AIIMS 2018 (3)

AIIMS Subjects

Biology

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Evolution