NTA JEE Main 26th August 2021 Shift 2

Given below are two statements:
Statement I : Sphalerite is a sulphide ore of zinc and copper glance is a sulphide ore of copper.
Statement II : It is possible to separate two sulphide ores by adjusting proportion of oil to water or by using depressants in a froth flotation method.
Choose the most appropriate answer from the options given below:

The number of non-ionisable hydrogen atoms present in the final product obtained from the hydrolysis of PCl$$_5$$ is:

Chalcogen group elements are:

Arrange the following Cobalt complexes in the order of increasing Crystal Field Stabilization Energy (CFSE) value.
Complexes:

Choose the correct option:

Indicate the complex/complex ion which did not show any geometrical isomerism:

Which one of the following phenols does not give colour when condensed with phthalic anhydride in presence of conc. H$$_2$$SO$$_4$$?

The number of stereoisomers possible for 1,2-dimethyl cyclopropane is:

Match List - I with List - II:
List - I (Chemical Reaction)                         List - II (Reagent used)
a. CH$$_3$$COOCH$$_2$$CH$$_3$$ $$\rightarrow$$ CH$$_3$$CH$$_2$$OH   i.   CH$$_3$$MgBr/H$$_3$$O$$^+$$ (one equivalent)
b. CH$$_3$$COOCH$$_3$$ $$\rightarrow$$ CH$$_3$$CHO               ii.  H$$_2$$SO$$_4$$/H$$_2$$O
c. CH$$_3$$C$$\equiv$$N $$\rightarrow$$ CH$$_3$$CHO                     iii. DIBAL-H/H$$_2$$O
d.                                                             iv. SnCl$$_2$$, HCl/H$$_2$$O

Choose the most appropriate match:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Sucrose is a disaccharide and a non-reducing sugar.
Reason (R): Sucrose involves glycosidic linkage between $$C_1$$ of $$\beta$$-glucose and $$C_2$$ of $$\alpha$$-fructose.
Choose the most appropriate answer from the options given below: