1
NEET 2024 (Re-Examination)
+4
-1

The quantum numbers of four electrons are given below :

I. $$n=4 ; I=2 ; m_1=-2 ; s=-\frac{1}{2}$$

II. $$n=3 ; I=2 ; m_1=1 ; s=+\frac{1}{2}$$

III. $$n=4 ; I=1 ; m_1=0 ; s=+\frac{1}{2}$$

IV. $$n=3 ; I=1 ; m_1=-1 ; s=+\frac{1}{2}$$

The correct decreasing order of energy of these electrons is

A
IV $$>$$ II $$>$$ III $$>$$ I
B
I $$>$$ III $$>$$ II $$>$$ IV
C
III $$>$$ I $$>$$ II $$>$$ IV
D
I $$>$$ II $$>$$ III $$>$$ IV
2
NEET 2024 (Re-Examination)
+4
-1

Given below are two statements:

Statement I: The Balmer spectral line for H atom with lowest energy is located at $$\frac{5}{36} R_H \mathrm{~cm}^{-1}$$.

($$\mathrm{R}_{\mathrm{H}}=$$ Rydberg constant)

Statement II: When the temperature of blackbody increases, the maxima of the curve (intensity and wavelength) shifts to shorter wavelength.

In the light of the above statements, choose the correct answer from the options given below:

A
Statement I is true but Statement II is false
B
Statement I is false but Statement II is true
C
Both Statement I and Statement II are true
D
Both Statement I and Statement II are false
3
NEET 2024
+4
-1

The energy of an electron in the ground state $$\mathrm{(n=1)}$$ for $$\mathrm{He}^{+}$$ ion is $$\mathrm{-x} \mathrm{~J}$$, then that for an electron in $$\mathrm{(n=2)}$$ state for $$\mathrm{Be}^{3+}$$ ion in $$\mathrm{J}$$ is

A
$$-x$$
B
$$-\frac{x}{9}$$
C
$$-4 x$$
D
$$-\frac{4}{9} x$$
4
NEET 2024
+4
-1

Match List I with List II.

List I
(Quantum Number)
List II
(Information provided)
A. $$\mathrm{m_l}$$ I. Shape of orbital
B. $$\mathrm{m_s}$$ II. Size of orbital
C. I III. Orientation of orbital
D. n IV. Orientation of spin of electron

Choose the correct answer from the options given below :

A
A-I, B-III, C-II, D-IV
B
A-III, B-IV, C-I, D-II
C
A-III, B-IV, C-II, D-I
D
A-II, B-I, C-IV, D-III
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