NEET 2023 | Structure of Atom Question 8 | Chemistry

NEET 2023

MCQ (Single Correct Answer)

-1

The relation between $$\mathrm{n}_{\mathrm{m}},\left(\mathrm{n}_{\mathrm{m}}=\right.$$ the number of permissible values of magnetic quantum number $$(\mathrm{m})$$) for a given value of azimuthal quantum number $$(l)$$, is

$$l=2 \mathrm{n}_{\mathrm{m}}+1$$

$$\mathrm{n}_{\mathrm{m}}=2 l^{2}+1$$

$$\mathrm{n}_{\mathrm{m}}=l+2$$

$$l=\frac{\mathrm{n}_{\mathrm{m}}-1}{2}$$

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

Match List-I with List-II :

	List-I (quantum number)		List-II (orbital)
(a)	n = 2, l = 1	(i)	2s
(b)	n = 3, l = 2	(ii)	3s
(c)	n = 3, l = 0	(iii)	2p
(d)	n = 2, l = 0	(iv)	3d

Choose the correct answer from the options given below :

(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)

(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)

(a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)

(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

NEET 2022 Phase 2

MCQ (Single Correct Answer)

-1

When electromagnetic radiation of wavelength 300 nm falls on the surface of a metal, electrons are emitted with the kinetic energy of 1.68 $$\times$$ 10⁵ J mol^$$-$$1. What is the minimum energy needed to remove an electron from the metal?

(h = 6.626 $$\times$$ 10^$$-$$34 Js, c = 3 $$\times$$ 10⁸ ms^$$-$$1, N_A = 6.022 $$\times$$ 10²³ mol^$$-$$1)

2.31 $$\times$$ 10⁵ J mol^$$-$$1

2.31 $$\times$$ 10⁶ J mol^$$-$$1

3.84 $$\times$$ 10⁴ J mol^$$-$$1

3.84 $$\times$$ 10^$$-$$19 J mol^$$-$$1

NEET 2022 Phase 1

MCQ (Single Correct Answer)

-1

Identify the incorrect statement from the following.

All the five 5d orbitals are different in size when compared to the respective 4d orbitals.

All the five 4d orbitals have shapes similar to the respective 3d orbitals.

In an atom, all the five 3d orbitals are equal in energy in free state.

The shapes of d_xy, d_yz and d_zx orbitals are similar to each other; and d_{x² $$-$$ y²} and d_z² are similar to each other.

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