NTA JEE Main 13th April 2023 Shift 2

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The diameter of colloidal particles in solution should not be much smaller than wavelength of light to show Tyndall effect.
Reason R : The light scatters in all directions when the size of particles is large enough.
In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements related to Ellingham diagram :
Statement I : Ellingham diagrams can be constructed for formation of oxides, sulphides and halides of metals.
Statement II : It consists of plots of $$\Delta H°$$ vs T for formation of oxides of elements.
In the light of the above statements, choose the most appropriate answer from the options given below :

The correct group of halide ions which can be oxidised by oxygen in acidic medium is

The covalency and oxidation state respectively of boron in BF$$_4^-$$, are

Which of the following complexes will exhibit maximum attraction to an applied magnetic field?

The total number of stereoisomers for the complex $$[Cr(ox)_2ClBr]^{3-}$$ (where ox = oxalate) is

Match List-I with List-II.
1-Bromopropane is reacted with reagents in List-I to give product in List-II

Compound A from the following reaction sequence is :

In the wet tests for detection of various cations by precipitation, Ba$$^{2+}$$ cations are detected by obtaining precipitate of

The naturally occurring amino acid that contains only one basic functional group in its chemical structure is