1
JEE Main 2022 (Online) 24th June Evening Shift
Numerical
+4
-1
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JEE Main 2022 (Online) 24th June Evening Shift Chemistry - Haloalkanes and Haloarenes Question 41 English

Consider the above reaction. The number of $$\pi$$ electrons present in the product 'P' is __________.

Your input ____
2
JEE Main 2022 (Online) 24th June Evening Shift
Numerical
+4
-1
Change Language

In alanylglycyl leucyl alanyl valine, the number of peptide linkages is ___________.

Your input ____
3
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Let $$x * y = {x^2} + {y^3}$$ and $$(x * 1) * 1 = x * (1 * 1)$$.

Then a value of $$2{\sin ^{ - 1}}\left( {{{{x^4} + {x^2} - 2} \over {{x^4} + {x^2} + 2}}} \right)$$ is :

A
$${\pi \over 4}$$
B
$${\pi \over 3}$$
C
$${\pi \over 2}$$
D
$${\pi \over 6}$$
4
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The sum of all the real roots of the equation

$$({e^{2x}} - 4)(6{e^{2x}} - 5{e^x} + 1) = 0$$ is

A
$${\log _e}3$$
B
$$ - {\log _e}3$$
C
$${\log _e}6$$
D
$$ - {\log _e}6$$
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