1
JEE Main 2022 (Online) 27th June Morning Shift
Numerical
+4
-1
Change Language

Two elements A and B which form 0.15 moles of A2B and AB3 type compounds. If both A2B and AB3 weigh equally, then the atomic weight of A is _____________ times of atomic weight of B.

Your input ____
2
JEE Main 2022 (Online) 27th June Morning Shift
Numerical
+4
-1
Change Language

Total number of possible stereoisomers of dimethyl cyclopentane is ____________.

Your input ____
3
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The area of the polygon, whose vertices are the non-real roots of the equation $$\overline z = i{z^2}$$ is :

A
$${{3\sqrt 3 } \over 4}$$
B
$${{3\sqrt 3 } \over 2}$$
C
$${3 \over 2}$$
D
$${3 \over 4}$$
4
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Let the system of linear equations
$$x + 2y + z = 2$$,
$$\alpha x + 3y - z = \alpha $$,
$$ - \alpha x + y + 2z = - \alpha $$
be inconsistent. Then $$\alpha$$ is equal to :

A
$${5 \over 2}$$
B
$$-$$$${5 \over 2}$$
C
$${7 \over 2}$$
D
$$-$$$${7 \over 2}$$
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