NTA JEE Main 24th January 2023 Shift 2

Sum of $$\pi$$-bonds present in peroxodisulphuric acid and pyrosulphuric acid is

The number of statement's, which are correct with respect to the compression of carbon dioxide from point (a) in the Andrews isotherm from the following is _____.

A. Carbon dioxide remains as a gas upto point (b)
B. Liquid carbon dioxide appears at point (c)
C. Liquid and gaseous carbon dioxide coexist between points (b) and (c)
D. As the volume decreases from (b) to (c), the amount of liquid decreases

One mole of an ideal monoatomic gas is subjected to changes as shown in the graph. The magnitude of the work done (by the system or on the system) is _____ J (nearest integer)

Given: log 2 = 0.3, ln 10 = 2.3

If the pKa of lactic acid is 5, then the pH of 0.005 M calcium lactate solution at 25°C is _____ $$\times 10^{-1}$$ (Nearest integer)

The Total pressure observed by mixing two liquid A and B is 350 mm Hg when their mole fractions are 0.7 and 0.3 respectively. The Total pressure becomes 410 mm Hg if the mole fractions are changed to 0.2 and 0.8 respectively for A and B. The vapour pressure of pure A is _____ mm Hg. (Nearest integer) Consider the liquids and solutions behave ideally

The number of units, which are used to express concentration of solutions from the following is _____.
(Mass percent, Mole, Mole fraction, Molarity, ppm, Molality.)

A student has studied the decomposition of a gas $$AB_3$$ at 25°C. He obtained the following data

The order of the reaction is

The number of statement/s which are the characteristics of physisorption is _____.
A. It is highly specific in nature
B. Enthalpy of adsorption is high
C. It decreases with increase in temperature
D. It results into unimolecular layer
E. No activation energy is needed

Maximum number of isomeric monochloro derivatives which can be obtained from 2,2,5,5-tetramethylhexane by chlorination is _____

Total number of tripeptides possible by mixing of valine and proline is _____.