Question

Q13) Assertion : Number of
orbitals in 3rd shell is 9. Reason:
Number of orbitals for a
particular value of n = n2 *
a) Assertion and reason both are correct statements and reason is
correct explanation for. Option 2
b) Assertion and reason both arecorrect statements but reason is
not correct explanation for
assertion.
c) Assertion is correct statement
but reason is wrong statement.
d) Assertion is wrong statement but
reason is correct statement.​

Answer 1

Answer:

(a) is correct option

Explanation:

Answer 2

Both assertion and reason are true and reason is the correct explaination of the assertion.

•If the orbit number is given then we can calculate the number of orbitals by n², where n is the number of orbital.

•Here , 3 is the orbit

Therefore, number of orbital= n²

= 3²

=9

•3 orbit corresponds to M and the 9 orbitals include 1 s-orbital , 3 p-orbitals and 5 d-orbitals.