NTA JEE Main 25th July 2021 Shift 2

The spin only magnetic moments (in BM) for free Ti$$^{3+}$$, V$$^{2+}$$ and Sc$$^{3+}$$ ions respectively are (At.No. Sc : 21, Ti : 22, V : 23)

The ionic radii of F$$^-$$ and O$$^{2-}$$ respectively are 1.33 A and 1.4A, while the covalent radius of N is 0.74A. The correct statement for the ionic radius of N$$^{3-}$$ from the following is:

In the following the correct bond order sequence is:

Identify the species having one $$\pi$$-bond and maximum number of canonical forms from the following:

Identify the process in which change in the oxidation state is five:

Which one of the following metals forms interstitial hydride easily?

Match List I with List II:
List-I (Elements)   List-II (Properties)
(a) Li   (i) Poor water solubility of I$$^-$$ salt
(b) Na   (ii) Most abundant element in cell fluid
(c) K   (iii) Bicarbonate salt used in fire extinguisher
(d) Cs   (iv) Carbonate salt decomposes easily on heating
Choose the correct answer from the options given below:

The correct decreasing order of densities of the following compounds is:

Which among the following is the strongest acid?

Given below are two statements:
Statement I : Chlorofluoro carbons breakdown by radiation in the visible energy region and release chlorine gas in the atmosphere which then reacts with stratospheric ozone.
Statement II : Atmospheric ozone reacts with nitric oxide to give nitrogen and oxygen gases, which add to the atmosphere.
For the above statements choose the correct answer from the options given below: