Home
Class 11
CHEMISTRY
Assertion : Atomic size of Boron is larg...

Assertion : Atomic size of Boron is larger than Beryllium
Reason : Alkali metals have only one electron in the valence shell

A

If both Assertion & Reason are true and the Reason is the correct explanation of the Assertion

B

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

C

If Assertion is true statement but Reason is false

D

If Assertion is false statement but Reason is true

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    BRILLIANT PUBLICATION|Exercise QUESTION|11 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    BRILLIANT PUBLICATION|Exercise LEVEL-I|50 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    BRILLIANT PUBLICATION|Exercise LEVEL - II|29 Videos

  • CHEMICAL THERMODYNAMICS

    BRILLIANT PUBLICATION|Exercise LEVEL-III|52 Videos

  • ENVIRONMENTAL CHEMISTRY

    BRILLIANT PUBLICATION|Exercise QUESTIONS LEVEL-II (ASSERTION-REASON TYPE)|10 Videos

Similar Questions

Explore conceptually related problems

Which element is having 5 electrons in valence shell?

Assertion : Hydrogen is called a rogue element. Reason: Hydrogen contains one electron in its valence shell.

Assertion : Size of Ca^(+2) is larger than K^(+) Reason : Number of electrons in Ca^(+2) is more than K^(+)

Assertion: The ionization of s-electrons requires more energy than that for the ionization of p-electrons in the same shell. Reason: s-electrons are closer to the nucleus than p-electrons and hence are more strongly attracted by nucleus.

Assertion : Atomic size of silver is almost the same as that of gold. Reason :d-subshell has low penetration power and produces poor shielding.

Assertion : Size of an anion is larger than their parent atom. Reason : Z_(eff) of anion is greater than that of their parent atom.

Assertion: Shielding effect increases as we go down the group. Reason: More is the number of electrons in the penultimate shell, more is the shielding

Assertion : Transition metals show variable valency. Reason : Transition metals have a large energy difference between the ns^2 and (n-1)d electrons.