Home
Class 11
CHEMISTRY
Assertion (A) : The radial probability o...

Assertion (A) : The radial probability of` 1s` electrons first increases,till it is maximum at `0.53 Å` and then decreases to zero
Reason (R ) : Bohr's radius for the first is `0.53 Å`

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the 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 (A) : In an atom, the velocity of electron in the higher orbits keeps on decreasing Reason (R ) : Velocity of electron in inversely proportional to the radius of the orbit

Assertion (A): The increasing pressure on water decreases its freezing point. Reason (R ):The density of water is maximum at 273 K .

Assertion (A): The increasing pressure on water decreases its freezing point. Reason (R ):The density of water is maximum at 277K .

The radius of the first orbit of H-atom is 0.53 Å. Find the radius of the fifth orbit.

The maximum radial probability in 1s -orbital occures at a distance when : [r_(0)= "Bohr radius"]

An electron is revolving in the n^(th) orbit of radius 4.2 Å , then the value of n is (r1=0.529 Å)

The de-Broglie wavelength of electron in a certain orbit 'n' of Be^"3+" ion is found to be 5.83 Å.Find the value of 'n'.Take I^"st" Bohr radius for H-atom =53 pm :

Assertion: In any transition series the magnetic moment of M^(2+) ions first increases then decreases Reason: In a transition series, the number of unpaired electrons first increases and then decreases.

Assertion (A) : For a first order, the concentration of a reaction decreases exponentially with time. Reason (R ): The rate of reaction at any time depends upon the concentration of the reactant at that time.

In Bohr's model, the atomic radius of the first orbit of Hydrogen atom is r_(0) then the radius of the third orbit is