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JEE Main Mock 78

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Question 1

Which is true statement about D₂O and H₂O -

Question 2

Abudance of H₂ in the earth's atmosphere is very small. This is because -

Question 3

Match compounds given in (X) with their uses in (Y) –

Hence correct order is –

Question 4

What would you observe if excess of dilute NaOH solution is added and shaken with an aqueous solution of aluminium chloride -

Question 5

In the middle of the depletion layer of a reverse-biased p-n junction, the

Question 6

The I–V characteristic of an LED is

Question 7

Truth table for system of four NAND gates as shown in figure is

Question 8

If a, b, c, d are inputs to a gate and x is its output, then, as per the following time graph, the gate is :
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Question 9

The abscissa of two points A, B are the roots of the equation x² + 2ax – b² = 0 and their ordinate are the roots of x² + 2px – q² = 0 then the distance AB in terms of a, b, p, q is -

Question 10

The distance between point (2, 15 º) & (1, 75 º) is -

Question 11

The coordinates of base BC of an isosceles triangle ABC are given by B (1, 3) and C (–2, 7) which of the following points can be the possible coordinates of the vertex A

Question 12

If vertices of a quadrilateral are A(0, 0), B(3, 4), C(7, 7) and D (4, 3), then quadrilateral ABCD is

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Jan 5JEE & BITSAT