NTA JEE Main 27th July 2021 Shift 2

Given below are two statement: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : SO$$_2$$(g) is adsorbed to a large extent than H$$_2$$(g) on activated charcoal.
Reason R : SO$$_2$$(g) has a higher critical temperature than H$$_2$$(g)
In the light of the above statements, choose the most appropriate answer from the options given below.

The addition of silica during the extraction of copper from its sulphide ore:-

Number of Cl = O bonds in chlorous acid, chloric acid and perchloric acid respectively are:

Given below are two statements:
Statement I: $$[Mn(CN)_6]^{3-}$$, $$[Fe(CN)_6]^{3-}$$ and $$[Co(C_2O_4)_3]^{3-}$$ are d$$^2$$sp$$^3$$ hybridised.
Statement II: $$[MnCl_6]^{3-}$$ and $$[FeF_6]^{3-}$$ are paramagnetic and have 4 and 5 unpaired electrons, respectively.
In the light of the above statements, choose the correct answer from the options given below:

What is A in the following reaction?

Consider the above reaction and identify "Y"

Given below are two statements:
Statement I : Penicillin is a bacteriostatic type antibiotic.
Statement II : The general structure of Penicillin is:

Choose the correct option:

To an aqueous solution containing ions such as Al$$^{3+}$$, Zn$$^{2+}$$, Ca$$^{2+}$$, Fe$$^{3+}$$, Ni$$^{2+}$$, Ba$$^{2+}$$ and Cu$$^{2+}$$ was added conc. HCl, followed by H$$_2$$S. The total number of cations precipitated during this reaction is/are:

Compound A gives D-Galactose and D-Glucose on hydrolysis. The compound A is: