NTA JEE Main 31st August 2021 Shift 2

The incorrect expression among the following is:

In which one of the following sets all species show disproportionation reaction?

Which one of the following statements is incorrect?

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Lithium salts are hydrated.
Reason (R): Lithium has higher polarising power than other alkali metal group members.
In the light of the above statements, choose the most appropriate answer from the options given below:

Match List - I with List - II:
List - I (Metal ion)     List - II (Group in Qualitative analysis)
(a) Mn$$^{2+}$$     (i) Group - III
(b) As$$^{3+}$$     (ii) Group - IIA
(c) Cu$$^{2+}$$     (iii) Group - IV
(d) Al$$^{3+}$$     (iv) Group - IIB
Choose the most appropriate answer from the options given below:

Arrange the following conformational isomers of n-butane in order of their increasing potential energy:

Identify correct A, B and C in the reaction sequence given below:

For the following sequence of reactions, the correct products are:

The deposition of X and Y on ground surfaces is referred as wet and dry depositions, respectively. X and Y are:

Match List - I with List - II:
List - I (Parameter)                                         List - II (Unit)
(a) Cell constant                                            (i) S cm$$^2$$ mol$$^{-1}$$
(b) Molar conductivity                                   (ii) Dimensionless
(c) Conductivity                                            (iii) m$$^{-1}$$
(d) Degree of dissociation of electrolyte     (iv) $$\Omega^{-1}$$ m$$^{-1}$$
Choose the most appropriate answer: