Question 1 of 10

If X = , then Xn, for n ∈ N is equal to

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Question 2 of 10

The area (in square unit) enclosed by the curve y = 4 x3 and y = 16x is

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Question 3 of 10

A weak acid HX has {tex}K_a = 1 \times 10^-5 M{/tex}. It forms a salt NaX on reaction with alkali. The percentage degree of dissociation of 0.1 M solution of NaX is

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Question 4 of 10

Auto reduction is employed in the metallurgy of :

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Question 5 of 10

Given the polymers ; A = Nylon ; B = Buna - S;C = Polythene. Arrange these in increasing order of their intermolecular force (lower to higher)

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Question 6 of 10

The area bounded by the curve y=x4-2x3+x2+3 with x-axis and ordinates corresponding to the minima of y is

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Question 7 of 10

If α, β, γ are the angles made by a straight line with the coordinate axes, then sin2α+sin2β+sin2γ is

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Question 8 of 10

At STP, volume of 0.01g of {tex}H_2{/tex} is the same as that of

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Question 9 of 10

If x1, x2, x3 as well as y1, y2, y3 are in GP with the same common ratio, then the points (x1, y1), (x2, y2) and (x3, y3) :

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Question 10 of 10

Two identical balls A and B collide head on elastically. If the velocity of A and B before collision are 0.5 m/s and -0.3m/s respectively, then their velocities after collision will be

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