JEE Mains · Chemistry · STD 11 - 2. structure of atom
Which of the following statement(s) is/are true ?
A. If two orbitals have the same value of \((n + l)\), the orbital with lower value of \(n\) will have lower energy.
B. Energies of the orbitals in the same subshell increase with increase in atomic number.
C. The size of \(2p_x\) orbital is less than the size of \(3p_x\) orbital.
D. Among \(5f\), \(6s\), \(4d\), \(5p\) and \(5d\) orbitals, none of the orbitals have \(2\) radial nodes.
Choose the correct answer from the options given below :
- A A, B and C only
- B A and C only
- C C and D only
- D A only
Answer & Solution
Correct Answer
(B) A and C only
Step-by-step Solution
Detailed explanation
Statement A: According to the \((n+l)\) rule, if two orbitals have the same \((n+l)\) value, the orbital with the lower value of \(n\) has lower energy. This statement is true. Statement B: As the atomic number increases, the effective nuclear charge (\(Z_{eff}\)) increases. The…
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