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Q.

Choose the correct statements from the following.

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a

A node is a point in space where the wave function (Ψ) has zero amplitude.

b

Total number of nodes in an orbital is equal to (n - 1).

c

Ψ2 represents the probability density of finding n electron.

d

Total no. of angular nodes in 2px orbital is one.

answer is A.

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Detailed Solution

Node is the point in space at which wave-function has no or 0 value. Thus, ψ has 0 amplitude. The number of maxima (peaks) in radial distribution in n−l.

ψ2 shows the probability of getting electron and 4πr2Rn,l2(r)  represent the radial probability.

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