Home
Class 11
CHEMISTRY
Assertion (A) : An orbital cannot have m...

Assertion (A) : An orbital cannot have more than two electrons
Reason (R ) : The two electrons in an orbital create opposite magnetic fields

A

Both A and R true and R is the correct explanation of A

B

Both A and R are true but R is not a correct explanation of A

C

A is true but R is false

D

A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion : An orbital cannot have more than two electrons, moreover, if an orbital has two electrons they must have opposite spins. Reason : No two electrons in an atom can have same set of all the four quantum numbers.

Assertion (A) : There are two spherical nodes in 3s orbital Reason (R ) : There is no planer nodes in 3s orbital.

Assertion (A) : p orbital is dumb- bell shaped Reason (R ) :Electron presents in p orbital can have any one of three value of magnetic quantum number i.e. 0,+1, or - 1

Assertion (A) : p orbital is dumb- bell shaped Reason (R ) :Electron presents in p orbital can have any one of three value of magnetic quantum number i.e. 0,+1, or - 1

STATEMENT-1: An orbital cannot have more then two electrons and they must have opposite spins. STATEMENT-2: No two electrojns in an atom can have same set of all the four quantum numbers as per Pauli's exclusion principle.

When there are two electrons in the same orbitals , they have ……………spins

Assertion (A) : IE_(1) of Mg is greater than that of Al . Reason (R ) : It is easier to remove an electron fro 3s orbital than from 3p orbital.

Assertion (A) : When the transition element ionises, the 4s -orbital electrons are removed before the 3d -orbital electrons. Reason (R ) : The energy of 3d -orbital electrons is lower than that of 4s -orbital electrons.

Assertion (A) : The ionisation energy of N is more than that of O Reason (R ) : Electronic configuration of N is more stable due to half - fillied 2p orbitals

Assertion (A) : Ionisation potential of Be (atomic number 4 ) is more than B (atomic number 5) Reason (R ) : The first electron released fromm Be is of p orbitals but that from B is of s orbitals.