Question 1 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 2 of 10

Question 3 of 10

A binary liquid solution is prepared by mixing n - heptane and ethanol. Which one of the following statement is correct regarding the behaviour of the solution?

Question 4 of 10

Two bodies are thrown vertically upwards with their initial speeds in the ratio 2 : 3. The ratio of the maximum heights reached by them and the ratio of their time taken by them to return back to the ground respectively are

Question 5 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 6 of 10

A

B

C

D

E

Question 7 of 10

Sulphur trioxide can be obtained by which of the following reaction.

Question 8 of 10

The major product of the reaction between tert-butylchloride and sodium-ethoxide is

Question 9 of 10

For the data

the Karl Pearson coefficient is

Question 10 of 10

then x is