Question 1 of 10

Question 2 of 10

The two slits are 1 mm apart from each other and illuminated with a light of wavelength 5 x 10^-7 m. If the distance of the screen is 1 m from the slits, then the distance between third dark fringe and fifth bright fringe is

Question 3 of 10

Which of the following has maximum number of lone pairs associated with Xe?

Question 4 of 10

∫e^{3 log x} (x⁴+1)^-1 dx is equal to

Question 5 of 10

A sample of radioactive substance with half-life of 3 days was found to contain only 3g of it, when received exactly 12 days after sealing.The amount of the radeioactive substance when it was sealed, was :

Question 6 of 10

A binary compound of elements X and Y contains 50% of X. If the atomic masses of X and Y are 10 and 20 and the molecular mass of the compound is 120, the molecular formula of the compound is

Question 7 of 10

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

Question 8 of 10

Which one of the following pairs of substances will not produce hydrogen when reacted together?

Question 9 of 10

Which of the following on thermal decomposition yields a basic as well as an acidic oxide?

Question 10 of 10

An organic compound A(C₄H₉Cl) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative. A is