Assertion :The radial probability of $1 s$ electron first increases, till the maximum at $53 ˚ A$ and then decreases to zero. Reason: Bohr radius for the first orbit is $53 ˚ A$ .

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Assertion is correct but Reason is incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both Assertion and Reason are incorrect

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
On observing the plot of radial probability of $1 s$ electron peak is observed at $0.53 A °$ and then probability becomes $0$ at $\infty$ . Also Bohr's radii of first orbit is $0.53 A °$ $(r = 0.53 n^{2} A °)$ . As both statement are independent, correct option is B.

Suggest Corrections

Similar questions

H_{2}

H e

(1 + \frac{P b}{R T})

H_{2}

H e

{2n}^{2}

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

H_{2}

ψ_{A} + ψ_{B}

Join BYJU'S Learning Program