1
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Given below are two statements:

Statement I : Noradrenaline is a neurotransmitter.

Statement II : Low level of noradrenaline is not the cause of depression in human.

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

A
Both Statement I and Statement II are incorrect
B
Statement I is correct but Statement II is incorrect
C
Both Statement I and Statement II are correct
D
Statement I is incorrect but Statement II is correct
2
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

It is observed that characteristic X-ray spectra of elements show regularity. When frequency to the power "n" i.e. $${v^n}$$ of X-rays emitted is plotted against atomic number "Z", following graph is obtained.

JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Structure of Atom Question 27 English

The value of 'n' is :

A
1
B
$$\frac{1}{2}$$
C
2
D
3
3
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Which of the Phosphorus oxoacid can create silver mirror from $$\mathrm{AgNO_3}$$ solution?

A
$$\mathrm{H_4P_2O_5}$$
B
$$\mathrm{H_4P_2O_7}$$
C
$$\mathrm{(HPO_3)_n}$$
D
$$\mathrm{H_4P_2O_6}$$
4
JEE Main 2023 (Online) 24th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Increasing order of stability of the resonance structures is :

JEE Main 2023 (Online) 24th January Morning Shift Chemistry - Compounds Containing Nitrogen Question 29 English

Choose the correct answer from the options given below :

A
D, C, B, A
B
C, D, B, A
C
C, A, B, D
D
D, C, A, B
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