BITSAT 2019 Chemistry Physical Revision Quiz 1

For a reaction A → Products, a plot of log t_1/2 versus log a₀ is shown in the figure. If the initial concentration of A is represented by a₀, the other of the reaction is

When CO₂(g) is passed over red hot coke it partially gets reduced to CO(g). Upon passing 0 .5 Lof CO₂(g) over red hot coke, the total volume of the gases increased to 700 mL.

The composition of the gaseous mixture at STEP is

Liquids A and B form an ideal solution. At 30°C, the total vapour pressure of a solution containing 1 mol of A and 2 mol of B is 250 mm Hg. The total vapour pressure becomes 300 mm Hg when 1 more mol of A is added to the first solution. The vapour pressures of pure A and B at the same temperature are

The value of K_p for the equilibrium reaction

N₂O₄(g) ⇌ 2NO₂(g) is 2

The percentage dissociation of N₂O₄(g) at a pressure of 0 .5 atm is

The limiting line in Balmer series will have a frequency of (Rydberg constant, R_H=3.29 x 10¹⁵ cycles/s)