NTA JEE Main 25th January 2023 Shift 1

Compound A reacts with NH$$_4$$Cl and forms a compound B. Compound B reacts with H$$_2$$O and excess of CO$$_2$$ to form compound C which on passing through or reaction with saturated NaCl solution forms sodium hydrogen carbonate. Compound A, B and C, are respectively.

Inert gases have positive electron gain enthalpy. Its correct order is

Match the List-I with List-II:
Cations      Group reaction
P $$\to$$ Pb$$^{2+}$$, Cu$$^{2+}$$      H$$_2$$S gas in presence of dilute HCl
Q $$\to$$ Al$$^{3+}$$, Fe$$^{3+}$$      (NH$$_4$$)$$_2$$CO$$_3$$ in presence of NH$$_4$$OH
R $$\to$$ Co$$^{2+}$$, Ni$$^{2+}$$      NH$$_4$$OH in presence of NH$$_4$$Cl
S $$\to$$ Ba$$^{2+}$$, Ca$$^{2+}$$      H$$_2$$S in presence of NH$$_4$$OH

In the cumene to phenol preparation in presence of air, the intermediate is

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Acetal/Ketal is stable in basic medium.
Reason R: The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.
In the light of the above statements, choose the correct answer from the options given below:

The correct order in aqueous medium of basic strength in case of methyl substituted amines is:

Identify the product formed (A and E)

Which of the following statements is incorrect for antibiotics?

The variation of the rate of an enzyme catalyzed reaction with substrate concentration is correctly represented by graph
(a)

(b)

(c)

(d)

Match items of Row I with those of Row II.

Row I
(P)

(Q)

(R)

(S)

Row II:
(i) $$\alpha$$-D-(-) Fructofuranose
(ii) $$\beta$$-D-(-) Fructofuranose
(iii) $$\alpha$$-D-(-) Glucopyranose
(iv) $$\beta$$-D-(-) Glucopyranose
Correct match is