NTA JEE Mains 23rd Jan 2025 Shift 1 - Chemistry

Given below are two statements:
Statement I: Fructose does not contain an aldehydic group but still reduces Tollen's reagent
Statement II: In the presence of base, fructose undergoes rearrangement to give glucose. In the light of the above statements, choose the correct answer from the options given below

The complex that shows Facial - Meridional isomerism is:

$$FeO_{4}^{2-}\xrightarrow{+2.0_{V}} Fe^{3+}\xrightarrow{0.8_{V}} Fe^{2+}\xrightarrow{-0.5_{V}}Fe^{0}$$ In the above diagram, the standard electrode potentials are given in volts (over the arrow). The value of $$E_{FeO_{4}^{2-}/Fe^{2+}}^{0}$$ is

The element that does not belong to the same period of the remaining elements (modern periodic table) is:

Match the LIST-I with LIST-II

Choose the correct answer from the options given below:

What amount of bromine will be required to convert 2 g of phenol into 2,4,6-tribromophenol? (Given molar mass in $$gmol^{-1}$$ of C, H, O, Br are 12, 1, 16, 80 respectively)

Which among the following react with Hinsberg's reagent?
Choose the correct answer from the options given below:

The correct set of ions (aqueous solution) with same colour from the following is:

Given below are two statements:
Statement I: In Lassaigne's test, the covalent organic molecules are transformed into ionic compounds.
Statement II: The sodium fusion extract of an organic compound having N and S gives prussian blue colour with $$FeSO_{4}$$ and $$Na_{4}[Fe(CN)_{6}]$$ In the light of the above statements, choose
the correct answer from the options given below.

Propane molecule on chlorination under photochemical condition gives two di-chloro products, " x " and " y ". Amongst " x " and " y ", " x " is an optically active molecule. How many tri-chloro products (consider only structural isomers) will be obtained from " x " when it is further treated with chlorine under the photochemical condition?

$$CrCl_{3}\cdot xNH_{3}$$ can exist as a complex. 0.1 molal aqueous solution of this complex shows a depression in freezing point of $$0.558^{\circ}C$$. Assuming 100% ionisation of this complex and coordination number of Cr is 6 , the complex will be (Given $$K_{f}$$ = 1.86 K kg $$mol^{-1}$$)

Which of the following happens when $$NH_{4}OH$$ is added gradually to the solution containing 1 M $$A^{2+}$$ and $$1MB^{3+}$$ ions? Given : $$K_{sp}[A(OH)_{2}]= 9 \times 10^{-10}$$ and $$K_{sp}[B(OH)_{3}]= 27 \times 10^{-18}$$ at 298 K .

The major product of the following reaction is:

Ice at $$-5^{\circ}C$$ is heated to become vapor with temperature of $$110^{\circ}C$$ at atmospheric pressure. The entropy change associated with this process can be obtained from

The incorrect statement among the following is options .

$$2.8 \times 10^{-3}$$ mol of $$CO_{2}$$ is left after removing $$10^{21}$$ molecules from its 'x' mg sample. The mass of $$CO_{2}$$ taken initially is Given: $$N_{A} = 6.02 \times 10^{23} mol^{-1}$$

Match the LIST-I with LIST-II

Choose the correct answer from the options given below:

Heat treatment of muscular pain involves radiation of wavelength of about 900 nm . Which spectral line of H atom is suitable for this? Given : Rydberg constant $$R_{H}=10^{5} cm^{-1}$$, $$h=6.6 \times 10^{-34}$$ Js,$$c= 3\times 10^{8}$$ m/s

The d- electronic configuration of an octahedral Co(II) complex having magnetic moment of 3.95 BM is:

The correct stability order of the following species/molecules is:

The standard enthalpy and standard entropy of decomposition of $$N_{2}O_{4}$$ to $$NO_{2}$$ are 55.0 kJ $$mol^{-1}$$ and 175.0 J/K/mol respectively. The standard free energy change for this reaction at $$25^{\circ}C$$ in J $$mol^{-1}$$ is ______ (Nearest integer)

For the thermal decomposition of $$N_{2}O_{5}(g)$$ at constant volume, the following table can be formed, for the reaction mentioned below. $$2 N_{2}O_{5}(g)\rightarrow 2 N_{2}O_{4}(g)+O_{2}(g)$$
$$x= .... \times 10^{-3}$$ atm [nearest integer] Given : Rate constant for the reaction is $$4.606 \times 10^{-2} s^{-1}.$$

During " S " estimation, 160 mg of an organic compound gives 466 mg of barium sulphate. The percentage of Sulphur in the given compound is _______ %. (Given molar mass in $$gmol^{-1}$$ of Ba : 137, S : 32, O : 16)

If 1 mM solution of ethylamine produces pH=9, then the ionization constant $$(K_{b})$$ of ethylamine is $$10^{-x}$$. The value of is ______ (nearest integer). [The degree of ionization of ethylamine can be neglected with respect to unity.]

Consider the following sequence of reactions to produce major product (A)

Molar mass of product (A) is $$gmol^{-1}$$. (Given molar mass in $$gmol^{-1}$$ of C : 12, H : 1, O : 16, Br : 80, N : 14, P : 31)