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Chemistry · PYQ NEET UG 2026
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Chemistry · PYQ NEET UG 2026
The correct order of solubility of the given salts in water at 298 K is SaltKsp at 298 K AgBr$5.0 \times 10^{-13}$ Zn(OH)2$1.0 \times 10^{-15}$ Hg2Cl2$1.3 \times 10^{-18}$
Read answer →Chemistry · PYQ NEET UG 2026
Given below are two statements: Statement-I : \( [\text{Fe(ox)}_3]^{3-} \) is chiral. Statement-II : \( \text{trans-}[\text{Cr(H}_2\text{O)}_2\text{ox}_2]^-\text{ is chiral.} (Given : \(\text{oxH}_2 = \text{HOOC} - \text{COOH} \)) In light of the above statements, choose the most appropriate answer from the options given below:
Read answer →Chemistry · PYQ NEET UG 2026
The highest occupied molecular orbital for \( Ne_2 \) is
Read answer →Chemistry · PYQ NEET UG 2026
The standard electrode potential ($E^\circ$) for the half-cell reaction $\text{Fe}^{3+} + \text{e}^- \rightarrow \text{Fe}^{2+}$ at $298\text{ K}$ is (Given: $E^\circ(\text{Fe}^{3+}/\text{Fe}) = -0.04\text{ V}$ and $E^\circ(\text{Fe}^{2+}/\text{Fe}) = -0.44\text{ V}$ at $298\text{ K}$)
Read answer →Chemistry · PYQ NEET UG 2026
The amino acid that gives a red-blood colour on treating its sodium fusion extract with sodium nitroprusside is
Read answer →Chemistry · PYQ NEET UG 2026
Among the species given below, the spin-only magnetic moment is highest for (Given : Atomic number of \( \text{Ti} = 22 \), \( \text{Mn} = 25 \), \( \text{Fe} = 26 \) and \( \text{Co} = 27 \))
Read answer →Chemistry · PYQ NEET UG 2026
Consider the following schematic plots of orbital wavefunction (\( \psi_r \)) against distance (\( r \)) from the nucleus. The figure representing two radial nodes in the orbital is
Read answer →Chemistry · PYQ NEET UG 2026
The correct decreasing order of oxidation state of the underlined atom in each molecule is \((\text{P}_4\text{O}_{10}, \text{SO}_3, \text{H}_2\text{O}; \text{N}_2\text{O}_5, \text{Al}_2\text{O}_3, \text{H}_2\text{S}; \text{PbO}_2, \text{N}_2\text{O}_3, \text{SO}_3; \text{P}_4\text{O}_6, \text{Cl}_2\text{O}_7, \text{AlH}_3\)
Read answer →Chemistry · PYQ NEET UG 2026
A protein undergoes reversible thermal denaturation from its initial state \( \mathbf{N} \) to denatured state \( \mathbf{D} \) according to \( \mathbf{N \rightleftharpoons D} \). At \( 60\;^\circ\text{C} \), the concentrations of both \( \mathbf{N} \) and \( \mathbf{D} \) are equal at equilibrium, and the standard enthalpy change of denaturation is \( 666\text{ kJ mol}^{-1} \). The standard entropy change (\( \Delta S^\circ \) in \( \text{kJ K}^{-1}\text{mol}^{-1} \)) of the protein upon denaturation at \( 60\;^\circ\text{C} \) is closest to
Read answer →Chemistry · PYQ NEET UG 2026
For the following reaction sequence, choose the correct option \( \text{Benzene} \xrightarrow[\text{ii. } \text{NaOCl}]{\text{i. } \text{CH}_3\text{COCl}, \text{ AlCl}_3} \text{P} + \text{Q} \)
Read answer →Chemistry · PYQ NEET UG 2026
The lanthanide ion having four unpaired electrons is (Given : Atomic numbers of \( Ce = 58 \), \( Nd = 60 \), \( Tb = 65 \) and \( Ho = 67 \))
Read answer →Chemistry · PYQ NEET UG 2026
Match the vitamins in List I with their sources in List II. List IList II A.vitamin AI.meat B.vitamin B_12II.sunflower oil C.vitamin EIII.green leafy vegetables D.vitamin KIV.carrots Choose the correct answer from the options given below.
Read answer →Chemistry · PYQ NEET UG 2026
Consider the following statements about the solutions formed by mixing two liquids. A. An ideal solution thus formed obeys Raoult's law throughout the composition range. B. Mixture of chloroform and acetone shows negative deviation from Raoult's law. C. Mixture of aniline and phenol shows positive deviation from Raoult's law. Choose the correct option:
Read answer →Chemistry · PYQ NEET UG 2026
For an elementary chemical reaction, the Arrhenius plot is given below. If the energy of activation is \( 6.64\text{ kJ mol}^{-1} \) and \( \text{R} = 8.3\text{ J K}^{-1} \text{ mol}^{-1} \), the temperature at which the rate constant becomes \( e^2 \text{ min}^{-1} \), is
Read answer →Chemistry · PYQ NEET UG 2026
Potash alum, the ratio of \( \text{K}^+ \) and \( \text{SO}_4^{2-} \) ions is
Read answer →Chemistry · PYQ NEET UG 2026
Given below are two statements: Statement-I: Oxidation of p-nitrotoluene with acidic KMnO4 gives an acid that is stronger than benzoic acid. Statement-II: Reduction of p-nitrotoluene with Sn/HCl followed by neutralization gives an amine that is more basic than aniline. In light of the above statements, choose the most appropriate answer from the options given below.
Read answer →Chemistry · PYQ NEET UG 2026
