Question 1 of 10

The critical temperature of {tex}O_2, N_2, H_2{/tex} and {tex}CO_2{/tex} are 154.3K, 126K, 33.2K and 304K respectively. The extent of adsorption on tungsten may be highest in case of

Question 2 of 10

In a polymer sample, 30% of molecules have a molecular mass of 20,000 40% have 30,000 and the rest 60,000. What is the weight average molecular mass of the polymer?

Question 3 of 10

A

B

C

D

E2 log (x²+1)(x²+3)+c

Question 4 of 10

Under which one of the following conditions, does the reaction take place,

Question 5 of 10

a, b, c (all positive) are the pth, qth, and rth terms of a geometric progression then

Question 6 of 10

The force between two magnetic poles is F. If the distance between the poles and the pole strenghts is doubled, then the force experienced is:

Question 7 of 10

The correct IUPAC name of the acid

Question 8 of 10

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

Question 9 of 10

A solution of urea (mol. Mass 60g {tex}mol^{-1}{/tex}) boils at {tex}100.18^\circ{/tex} C at the atmospheric pressure. If {tex}K_f{/tex} and {tex}K_b{/tex} for water are 1.86 and 0.512 K kg {tex}mol^{-1}{/tex} respectively, the above solution will freeze at

Question 10 of 10

The condition that ax + by + c = 0 is tangent to the parabola y² = 4ax is