NTA JEE Main 31st January 2023 Shift 2

Evaluate the following statements for their correctness.
A. The elevation in boiling point temperature of water will be same for 0.1 M NaCl and 0.1 M urea.
B. Azeotropic mixture boil without change in their composition.
C. Osmosis always takes place from hypertonic to hypotonic solution.
D. The density of 32% H$$_2$$SO$$_4$$ solution having molarity 4.09 M is approximately 1.26 g mL$$^{-1}$$.
E. A negatively charged sol is obtained when KI solution is added to silver nitrate solution.
Choose the correct answer from the options given below:

Match List I with List II
List I                                                                List II
A. Physisorption                                       I. Single Layer Adsorption
B. Chemisorption                                      II. 20-40 kJ mol$$^{-1}$$
C. N$$_2$$(g) + 3H$$_2$$(g) $$\xrightarrow{Fe(s)}$$ 2NH$$_3$$(g)        III. Chromatography
D. Analytical Application or Adsorption   IV. Heterogeneous catalysis
Choose the correct answer from the options given below:

Which one of the following statements is incorrect?

Which of the following elements have half-filled f-orbitals in their ground state?
A. Sm, B. Eu, C. Tb, D. Gd, E. Pm
(Given: atomic number Sm = 62; Eu = 63; Tb = 65; Gd = 64, Pm = 61)
Choose the correct answer from the options given below:

In the following halogenated organic compounds the one with maximum number of chlorine atoms in its structure is:

Cyclohexylamine when treated with nitrous acid yields (P). On treating (P) with PCC results in (Q). When (Q) is heated with dil. NaOH we get (R). The final product (R) is:
(1)
(2)
(3)
(4)

An organic compound [A] (C$$_4$$H$$_{11}$$N), shows optical activity and gives N$$_2$$ gas on treatment with HNO$$_2$$. The compound [A] reacts with PhSO$$_2$$Cl producing a compound which is soluble in KOH. The structure of A is:

Which of the following compounds are not used as disinfectants?
A. Chloroxylenol
B. Bithional
C. Veronal
D. Prontosil
E. Terpineol
Choose the correct answer from the options given below:

Given below are two statements:
Statement I: Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour of the bead becomes green.
Statement II: The green colour observed is due to the formation of copper(I) metaborate.
In the light of the above statements, choose the most appropriate answer from the options given below:

Compound A, C$$_5$$H$$_{10}$$O$$_5$$, given a tetraacetate with AC$$_2$$O and oxidation of A with Br$$_2$$ - H$$_2$$O gives an acid, C$$_5$$H$$_{10}$$O$$_6$$. Reduction of A with HI gives isopentane. The possible structure of A is: