MCQ
The number of radial nodes of $ 3s$ and $2p$ orbitals are respectively.
- ✓$2, 0$
- B$0, 2$
- C$1, 2$
- D$2, 1$
✓
Answer
Correct option: A.
$2, 0$
a
(a) Number of radial nodes $ = (n - l - 1)$
(a) Number of radial nodes $ = (n - l - 1)$
For $3s: n = 3, l = 0$
(Number of radial node $ = 2)$
For $ 2p: n =2, l = 1$
(Number of radial node $= 0)$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The most stable canonical structure among the given structure is
Elements of which of the following groups do not form hydrides?
A layer of coke is spread over bauxite during electrolytic reduction of alumina by Hall-Heroult process. This layer acts as a/an:
$(A) + C{l_2}\xrightarrow{{hv}}$ monochloro product
To maximise the yield of monochloro product in the above reaction ?
→To maximise the yield of monochloro product in the above reaction ?
The work done during reversible isothermal expansion of one mole of hydrogen gas at $25^{\circ} \mathrm{C}$ from pressure of $20 \mathrm{atmosphere} \mathrm{to} 10 \mathrm{atmosphere}$ is
→(Given $R=2.0 \mathrm{cal} \mathrm{K}^{-1} \mathrm{~mol}^{-1}$ )
Which of the following is/ are general characteristics of an atom with high electronegativity?
With reference to concept of ionisation potential, which one of the following sets are correct
${A_{(g)}} + 3{B_{(g)}}$ $\rightleftharpoons$ $4{C_{(g)}}$. Starting concentration of $A$ is equal to $B$, equilibrium concentration of $A$ and $C$ are same. ${K_c} = $
→In the presence of peroxide, hydrogen chloride and hydrogen iodide do not give anti-Markovnikoff’s addition to alkenes because
Which of the following facts given is not correct ?
$(I)$ Bond length order : $H^-_2 = H^+_2 > H_2$
→$(I)$ Bond length order : $H^-_2 = H^+_2 > H_2$
$(II)\, O^+_2 ,NO,N^-_2$ have same bond order of $2 \frac{1}{2}$
$(III)$ Bond order can assume any value including zero upto four
$(IV)\, NO^-_3$ and $BO^-_3$ have same bond order for $X - O$ bond (where $X$ is central atom)