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Chemistry

During sodium nitroprusside test of sulphide ion in an aqueous solution, one of the ligands coordinated to the metal ion is converted to:

The complete hydrolysis of \( \text{ICl} \), \( \text{ClF}_3 \) and \( \text{BrF}_5 \), respectively, gives:

Monocyclic compounds \( P \), \( Q \), \( R \) and \( S \) are the major products formed in the reaction sequences given below.

The product having the highest number of unsaturated carbon atom(s) is:

The correct reaction/reaction sequence that would produce a dicarboxylic acid as the major product is:

The correct statement(s) about intermolecular forces is(are):

The compound(s) with \( \text{P–H} \) bond(s) is (are):

For the reaction sequence given below, the correct statement(s) is (are):

For the reaction sequence given below, the correct statement(s) is (are):

The density \( \left( \mathrm{in \ g \, cm^{-3}} \right) \) of the metal which forms a cubic close packed \( \mathrm{(ccp)} \) lattice with a axial distance \( (\mathrm{edge \ length}) \) equal to \( 400 \\ \mathrm{pm} \) is __________.
Use: Atomic mass of metal \( 105.6 \\ \mathrm{amu} \) and Avogadro’s constant \( = 6 \times 10^{23} \\ \mathrm{mol^{-1}} \).

The solubility of barium iodate in an aqueous solution prepared by mixing \( 200 \\ \mathrm{mL} \) of \( 0.010 \\ \mathrm{M} \) barium nitrate with \( 100 \\ \mathrm{mL} \) of \( 0.10 \\ \mathrm{M} \) sodium iodate is \( X \times 10^{-6} \\ \mathrm{mol \, dm^{-3}} \). The value of \( X \) is __________.
Use: Solubility product constant \( (K_{sp}) \) of barium iodate \( = 1.58 \times 10^{-9} \).

Adsorption of phenol from its aqueous solution on to fly ash obeys Freundlich isotherm. At a given temperature, from \( 10 \\ \mathrm{mg \, g^{-1}} \) and \( 16 \\ \mathrm{mg \, g^{-1}} \) aqueous phenol solutions, the concentrations of adsorbed phenol are measured to be \( 4 \\ \mathrm{mg \, g^{-1}} \) and \( 10 \\ \mathrm{mg \, g^{-1}} \), respectively. At this temperature, the concentration \(( \mathrm{in \, mg \, g^{-1}}) \) of adsorbed phenol from \( 20 \\ \mathrm{mg \, g^{-1}} \) aqueous solution of phenol will be __________.
Use: \( \log_{10} 2 = 0.3 \)

Consider a reaction \( A + R \rightarrow \text{Product} \). The rate of this reaction is measured to be \( k[A][R] \). At the start of the reaction, the concentration of \( R \), \( [R]_0 \), is \( 10 \)-times the concentration of \( A \), \( [A]_0 \). The reaction can be considered to be a pseudo first order reaction with assumption that \( k[R] = k' \) is constant. Due to this assumption, the relative error (in \( \% \)) in the rate when this reaction is \( 40\% \) complete, is ________.
[\( k \) and \( k' \) represent corresponding rate constants]

At \( 300 \, \text{K} \), an ideal dilute solution of a macromolecule exerts osmotic pressure that is expressed in terms of the height (\( h \)) of the solution (density \( = 1.00 \, g \, \text{cm}^{-3} \)) where \( h \) is equal to \( 2.00 \, \text{cm} \). If the concentration of the dilute solution of the macromolecule is \( 2.00 \, g \, \text{dm}^{-3} \), the molar mass of the macromolecule is calculated to be \( X \times 10^{4} \, g \, \text{mol}^{-1} \). The value of \( X \) is __________.
Use: Universal gas constant (\( R \)) \( = 8.3 \, J \, K^{-1} \, \text{mol}^{-1} \) and acceleration due to gravity (\( g \)) \( = 10 \, \text{m} \, \text{s}^{-2} \).

An electrochemical cell is fueled by the combustion of butane at \( 1 \, \text{bar} \) and \( 298 \, \text{K} \). Its cell potential is \( \dfrac{X}{F} \times 10^{3} \) volts, where \( F \) is the Faraday constant. The value of \( X \) is __________.
Use: Standard Gibbs energies of formation at \( 298 \, \text{K} \) are: \( \Delta_f G^\circ_{\text{CO}_2} = -394 \, \text{kJ} \, \text{mol}^{-1}; \; \Delta_f G^\circ_{\text{water}} = -237 \, \text{kJ} \, \text{mol}^{-1}; \; \Delta_f G^\circ_{\text{butane}} = -18 \, \text{kJ} \, \text{mol}^{-1} \).

The sum of the spin only magnetic moment values (in B.M.) of \( [\text{Mn}(\text{Br})_6]^{3-} \) and \( [\text{Mn}(\text{CN})_6]^{3-} \) is __________.

A linear octasaccharide (molar mass \( = 1024 \, g \, \text{mol}^{-1} \)) on complete hydrolysis produces three monosaccharides: ribose, 2-deoxyribose and glucose. The amount of 2-deoxyribose formed is \( 58.26\% \) (w/w) of the total amount of the monosaccharides produced in the hydrolyzed products. The number of ribose unit(s) present in one molecule of octasaccharide is __________.
Use: Molar mass (in \( g \, \text{mol}^{-1} \)): ribose \( = 150 \), 2-deoxyribose \( = 134 \), glucose \( = 180 \); Atomic mass (in amu): \( \text{H} = 1 \), \( \text{O} = 16 \).

JEE Advance 2025 Paper-2

Physics Chemistry Mathematics

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The sum of the spin only magnetic moment values (in B.M.) of \( [\text{Mn}(\text{Br})_6]^{3-} \) and \( [\text{Mn}(\text{CN})_6]^{3-} \) is __________.