Number Theory — Square Roots Mock Tests

A mixture contains aniline and nitrobenzene. Which method is best for separating aniline by steam distillation?

Light of wavelength λ is incident on a metal surface with work function φ. The stopping potential is V_s. If the wavelength is reduced to λ/3 and the work function is halved, the new stopping potential is:

A prism of refractive index √2 has a refracting angle of 60°. The minimum angle of deviation δₘ is:

Find the odd one out among the following.

An organic compound containing carbon, hydrogen, and oxygen gives 0.44 g of CO₂ and 0.18 g of H₂O on complete combustion of 0.24 g of the compound. What is the empirical formula of the compound? (Atomic masses: C = 12, H = 1, O = 16)

In Young double slit experiment, a thin slab of refractive index mu and thickness t is placed in front of one of the slits. The central maximum shifts by a distance equal to one fringe width beta. The thickness t is:

Find the odd one out.

In the reaction: 2KMnO₄ + 16HCl → 2KCl + 2MnCl₂ + 5Cl₂ + 8H₂O, which species acts as the oxidising agent and what is the change in oxidation number of manganese?