NEET 2025

159 Questions • 180 Minutes • 2025

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Given below are two statements: Statement I: Like nitrogen that can form ammonia, arsenic can form arsine. Statement II: Antimony cannot form antimony pentoxide. In the light of the above statements, choose the most appropriate answer from the options given below:

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Which among the following electronic configurations belong to main group elements? A. [Ne]3s$^1$ B. [Ar]3d$^3$ 4s$^2$ C. [Kr]4d$^{10}$5s$^2$5p$^5$ D. [Ar]3d$^{10}$4s$^1$ E. [Rn]5f$^0$6d$^2$7s$^2$ Choose the correct answer from the options given below:

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Dalton's Atomic theory could not explain which of the following?

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Consider the following compounds: $\underline{K}O_2$, $H_2\underline{O}_2$ and $H_2\underline{S}O_4$ The oxidation states of the underlined elements in them are, respectively,

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If the half-life ($t_{1/2}$) for a first order reaction is 1 minute, then the time required for 99.9% completion of the reaction is closet to:

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The correct order of the wavelength of light absorbed by the following complexes is, A. $[Co(NH_3)_6]^{3+}$ B. $[Co(CN)_6]^{3-}$ C. $[Cu(H_2O)_4]^{2+}$ D. $[Ti(H_2O)_6]^{3+}$ Choose the correct answer from the options given below:

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Which one of the following compounds can exist as cis-trans isomers?

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Phosphoric acid ionizes in three steps with their ionization constant values $K_{a_1}, K_{a_2}$ and $K_{a_3}$, respectively, while K is the overall ionization constant. Which of the following statements are true? A. $\log K = \log K_{a_1} + \log K_{a_2} + \log K_{a_3}$ B. $H_3PO_4$ is stronger acid than $H_2PO_4^-$ and $HPO_4^{2-}$. C. $K_{a_1} > K_{a_2} > K_{a_3}$ D. $K_{a_1} = \frac{K_{a_3} + K_{a_2}}{2}$ Choose the correct answer from the options given below:

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If the molar conductivity ($\Lambda_m$) of a 0.050 mol L$^{-1}$ solution of a monobasic weak acid is 90 S cm$^2$ mol$^{-1}$, its extent (degree) of dissociation will be [Assume $\Lambda^\circ_+ = 349.6$ S cm$^2$ mol$^{-1}$ and $\Lambda^\circ_- = 50.4$ S cm$^2$ mol$^{-1}$]

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Given below are two statements: Statement I: A hypothetical diatomic molecule with bond order zero is quite stable. Statement II: As bond order increases, the bond length increases. In the light of the above statements, chose the most appropriate answer from the options given below:

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Out of the following complex compounds, which of the compound will be having the minimum conductance is solution?

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Match the List-I with List-II. [table] List-I | List-II ; A. $XeO_3$ | I. $sp^3d$; linear ; B. $XeF_2$ | II. $sp^3$; pyramidal ; C. $XeOF_4$ | III. $sp^3d^3$: distorted octahedral ; D. $XeF_6$ | IV. $sp^3d^2$; square pyramidal [/table] Choose the correct answer from the options given below.

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C(s) + 2H$_2$(g) $\rightarrow$ CH$_4$(g); $\Delta H= -74.8$ kJ mol$^{-1}$ Which of the following diagrams gives an accurate representation of the above reaction? [R → reactants; P → products]

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Match the List-I with List-II. [table] List-I (Example) | List-II (Type of Solution) ; A. Humidity | I. Solid in solid ; B. Alloys | II. Liquid in gas ; C. Amalgams | III. Solid in gas ; D. Smoke | IV. Liquid in solid [/table] Choose the correct answer from the options given below.

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The correct order of decreasing basic strength of the given amines is:

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Among the following, choose the ones with equal number of atoms. A. 212 g of Na$_2$CO$_3$ (s) [molar mass = 106 g] B. 248 g of Na$_2$O (s) [molar mass = 62 g] C. 240 g of NaOH (s) [molar mass = 40 g] D. 12 g of H$_2$(g) [molar mass = 2 g] E. 220 g of CO$_2$(g) [molar mass = 44 g] Choose the correct answer from the options given below:

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Match the List-I with List-II. [table] List-I (Name of Vitamin) | List-II (Deficiency disease) ; A. Vitamin B$_{12}$ | I. Cheilosis ; B. Vitamin D | II. Convulsions ; C. Vitamin B$_2$ | III. Rickets ; D. Vitamin B$_6$ | IV. Pernicious anaemia [/table] Choose the correct answer from the options given below.

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The correct order of decreasing acidity of the following aliphatic acids is:

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Given below are two statements; Statement I: Ferromagnetism is considered as an extreme form of paramagnetism. Statement II: The number of unpaired electrons in a Cr$^{2+}$ ion (Z=24) is the same as that of a Nd$^{3+}$ ion (Z= 60). In the light of the above statements, choose the correct answer from the options given below:

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Match the List-I with List-II. [table] List-I (Mixture) | List-II (Method of Separation) ; A. CHCl$_3$ + C$_6$H$_5$NH$_2$ | I. Distillation under reduced pressure ; B. Crude oil in petroleum industry | II. Steam distillation ; C. Glycerol from spent-lye | III. Fractional distillation ; D. Aniline-water | IV. Simple distillation [/table] Choose the correct answer from the options given below.

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Paper Info

Exam: NEET
Year: 2025
Questions: 159
Duration: 180 mins

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