Home
Class 10
CHEMISTRY
Assertion: Group 18 elements are almost ...

Assertion: Group 18 elements are almost inert
Reason: They have completely filled outer-most shell.

A

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

B

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

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
Noble gases are inert due to their complete valence shell.
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS

    MTG IIT JEE FOUNDATION|Exercise Exercise (Comprehension Type)|14 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    MTG IIT JEE FOUNDATION|Exercise Exercise (Subjective Problems Very Short Answer Type)|26 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS

    MTG IIT JEE FOUNDATION|Exercise Exercise (Match the following)|3 Videos

  • MOLE CONCEPT, STOICHIOMETRY AND BEHAVIOUR OF GASES

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (INTEGER/NUMERICAL VALUE TYPE) |5 Videos

Similar Questions

Explore conceptually related problems

Three elements with filled outermost shell.

Assertion: All the zero group members posses 8 electron in their outermost subshell. Reason: due to completely filled outermost shell, the zero group members are less reactive or almost inert.

The inner shells of electrons are completely filled in

Why are zero group elements chemically inert ?

Assertion. The roundworms are eucoelomates. Reason. They have a fluid-filled coelom.

Assertion (A): Transition metals have high melting point. Reason (R): Transition metals have completely filled d-orbitals.