NTA JEE Main 29th June 2022 Shift 2

Using the rules for significant figures, the correct answer for the expression $$\frac{0.02858 \times 0.112}{0.5702}$$ will be:

Which of the following is the correct plot for the probability density $$\psi^2(r)$$ as a function of distance 'r' of the electron form the nucleus for 2s orbital?

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: The first ionization enthalpy for oxygen is lower than that of nitrogen.
Reason R: The four electrons in 2p orbitals of oxygen experience more electron-electron repulsion.
In the light of the above statements, choose the correct answer from the options given below.

Consider the species CH$$_4$$, NH$$_4^+$$ and BH$$_4^-$$. Choose the correct option with respect to the three species:

Number of lone pair (s) of electrons on central atom and the shape of BrF$$_3$$ molecule respectively, are:

4.0 moles of argon and 5.0 moles of PCl$$_5$$ are introduced into an evacuated flask of 100 litre capacity at 610 K. The system is allowed to equilibrate. At equilibrium, the total pressure of mixture was found to be 6.0 atm. The K$$_p$$ for the reaction is [Given: R = 0.082 L atm K$$^{-1}$$ mol$$^{-1}$$]

Amongst baking soda, caustic soda and washing soda carbonate anion is present in:

Aqueous solution of which of the following boron compounds will be strongly basic in nature?

Which of the following carbocations is most stable?

Sulphur dioxide is one of the components of polluted air. SO$$_2$$ is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by SO$$_2$$ is: