NTA JEE Main 8th April 2023 Shift 2 - Chemistry

Which of the following have same number of significant figures?
(A) 0.00253
(B) 1.0003
(C) 15.0
(D) 163
Choose the correct answer from the options given below

Henry Moseley studied characteristic X-ray spectra of elements. The graph which represents his observation correctly is
Given $$\nu$$ = Frequency of X-ray emitted, $$Z$$ = Atomic number

The number of atomic orbitals from the following having 5 radial nodes is
7s, 7p, 6s, 8p, 8d

The number of species from the following carrying a single lone pair on central atom Xenon is
$$XeF_5^+$$, $$XeO_3$$, $$XeO_2F_2$$, $$XeF_5^-$$, $$XeO_3F_2$$, $$XeOF_4$$, $$XeF_4$$

Arrange the following gases in increasing order of van der Waals constant 'a'
(A) Ar
(B) CH$$_4$$
(C) H$$_2$$O
(D) C$$_6$$H$$_6$$
Choose the correct option from the following.

The incorrect statements from the following is:
A. The electrical work that a reaction can perform at constant pressure and temperature is equal to the reaction Gibbs energy.
B. $$E^\circ_{cell}$$ is dependent on the pressure.
C. $$\frac{dE_{cell}}{dT} = \frac{\Delta_r S}{nF}$$
D. A cell is operating reversibly if the cell potential is exactly balanced by an opposing source of potential difference.

Given below are two statements:
Statement-I: Methyl orange is a weak acid.
Statement-II: The benzenoid form of methyl orange is more intense/deeply coloured than the quinonoid form.
In the light of the above statement, choose the most appropriate answer from the options given below:

Given below are two statements:
Statement I: In redox titration, the indicators used are sensitive to change in pH of the solution.
Statement II: In acid-base titration, the indicators used are sensitive to change in oxidation potential.
In the light of the above statements, choose the most appropriate answer from the options given below

Which of the following can reduce decomposition of H$$_2$$O$$_2$$ on exposure to light

For a good quality cement, the ratio of lime to the total of the oxides of Si, Al and Fe should be as close as to

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Sodium is about 30 times as abundant as potassium in the oceans.
Reason R: Potassium is bigger in size than sodium.
In the light of the above statements, choose the correct answer from the options given below

The descending order of acidity for the following carboxylic acid is-
(A) CH$$_3$$COOH
(B) F$$_3$$C-COOH
(C) ClCH$$_2$$-COOH
(D) FCH$$_2$$-COOH
(E) BrCH$$_2$$-COOH
Choose the correct answer from the options given below:

The correct IUPAC nomenclature for the following compound is:

Which of these reactions is not a part of breakdown of ozone in stratosphere?

The correct reaction profile diagram for a positive catalyst reaction.

The statement/s which are true about antagonists from the following is/are:
A. They bind to the receptor site.
B. Get transferred inside the cell for their action.
C. Inhibit the natural communication of the body.
D. Mimic the natural messenger.
Choose the correct option from the options given below:

In Hall-Heroult process, the following is used for reducing Al$$_2$$O$$_3$$:-

Match List-I with List-II

The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous NaOH is:

A compound 'X' when treated with phthalic anhydride in presence of concentrated H$$_2$$SO$$_4$$ yields 'Y'. 'Y' is used as an acid/base indicator. 'X' and 'Y' are respectively

For complete combustion of ethene,
$$C_2H_4(g) + 3O_2(g) \to 2CO_2(g) + 2H_2O(l)$$
the amount of heat produced as measured in bomb calorimeter is 1406 kJ mol$$^{-1}$$ at 300 K. The minimum value of T$$\Delta$$S needed to reach equilibrium is ($$-$$) kJ. (Nearest integer)
Given: R = 8.3 J K$$^{-1}$$ mol$$^{-1}$$

The solubility product of BaSO$$_4$$ is $$1 \times 10^{-10}$$ at 298 K. The solubility of BaSO$$_4$$ in 0.1 M K$$_2$$SO$$_4$$(aq) solution is _______ $$\times 10^{-9}$$ g L$$^{-1}$$ (nearest integer).
Given: Molar mass of BaSO$$_4$$ is 233 g mol$$^{-1}$$

If the boiling points of two solvents X and Y (having same molecular weights) are in the ratio 2:1 and their enthalpy of vaporizations are in the ratio 1:2, then the boiling point elevation constant of X is m times the boiling point elevation constant of Y. The value of m is (nearest integer).

Coagulating value of the electrolytes AlCl$$_3$$ and NaCl for As$$_2$$S$$_3$$ are 0.09 and 50.04 respectively. The coagulating power of AlCl$$_3$$ is x times the coagulating power of NaCl. The value of x is _____.

The ratio of sigma and $$\pi$$ bonds present in pyrophosphoric acid is _____.

The observed magnetic moment of the complex $$[Mn(NCS)_6]^{x-}$$ is 6.06 BM. The numerical value of x is _____.

The sum of oxidation state of the metals in Fe(CO)$$_5$$, VO$$^{2+}$$ and WO$$_3$$ is _____.

Major product 'P' formed in the following reaction is:

The product (P) formed from the following multistep reaction is:

Match List I with List II

Choose the correct answer from the options given below: