Question 1 of 10

A flask was filled with {tex}CCl_4{/tex} vapours at a particular temperature and pressure. These vapours were then replaced by oxygen gas at the same temperature and pressure, the mass of {tex}CCl_4{/tex} vapours will be

Question 2 of 10

A beaker containing a liquid appears to be half when it is actually two third full. The refractive index of liquid is

Question 3 of 10

A unit vector in the plane of vector i + 2j + k and i + j + 2k and perpendicular to 2i + j + k is

Question 4 of 10

Two finite sets have m and n elements respectively. The total number of subsets of first set is 56 more than the total number of subsets of the second set. The values of m and n respectively are

Question 5 of 10

A

B

C

D

E2 log (x²+1)(x²+3)+c

Question 6 of 10

Which compound among the following give/s positive iodoform test?
1. Ethanol
2. Ethanal
3. 1-butanol
4. 2-butanol
5. Phenyl ethanal

Question 7 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 8 of 10

Basic properties of {tex}TiO_2, ZrO_2{/tex} and {tex}HfO_2{/tex} are in the order:

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) :

Question 10 of 10

The radius of the coil which has 10 turns is 0.1m. The current required to produce a deflection of 60° (B_h = 4×10^-5T)