1
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

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)
MCQ (Single Correct Answer)
+4
-1
Change Language

The major product $$\mathrm{C}$$ in the below mentioned reaction is:

$$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br} \xrightarrow[\Delta]{\text { alc. } \mathrm{KOH}} \mathrm{A} \xrightarrow{\mathrm{HBr}} \mathrm{B} \xrightarrow[\Delta]{\text { aq. } \mathrm{KOH}} \mathrm{C}$$

A
Propan-1-ol
B
Propan-2-ol
C
Propane
D
Propyne
3
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

The compound that does not undergo Friedel-Crafts alkylation reaction but gives a positive carbylamine test is :

A
Aniline
B
Pyridine
C
N-methylaniline
D
Triethylamine
4
NEET 2024 (Re-Examination)
MCQ (Single Correct Answer)
+4
-1
Change Language

For an endothermic reaction:

(A) $$\mathrm{q}_{\mathrm{p}}$$ is negative.

(B) $$\Delta_{\mathrm{r}} \mathrm{H}$$ is positive.

(C) $$\Delta_r \mathrm{H}$$ is negative.

(D) $$\mathrm{q}_{\mathrm{p}}$$ is positive.

Choose the correct answer from the options given below:

A
B and D
B
C and D
C
A and B
D
A and C
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