NEET 2024

169 Questions • 200 Minutes • 2024

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Arrange the following elements in increasing order of first ionization enthalpy: Li, Be, B, C, N Choose the correct answer from options given below:

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The highest number of helium atoms is in

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The Henry’s law constant ($K_H$) values of three gases (A, B, C) in water are 145, $2\times10^{-5}$ and 35 kbar, respectively. The solubility of these gases in water follow the order:

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A compound X contains 32% of A, 20% of B and remaining percentage of C. Then, the empirical formula of X is: (Given atomic masses of A = 64; B = 40; C = 32u)

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The products A and B obtained in the following reactions, respectively, are $3ROH+PCl_3\to3RCl+A$ $ROH+PCl_5\to RCl+HCl+B$

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The plot of osmotic pressure ($\Pi$) vs concentration (mol L$^{-1}$) for a solution gives a straight line with slope 25.73 L bar mol$^{-1}$. The temperature at which the osmotic pressure measurement is done is: (Use R = 0.083 L bar mol$^{-1}$ K$^{-1}$)

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Given below are two statements: Statement I: $\left[Co(NH_3)_6\right]^{3+}$ is a homoleptic complex whereas $\left[Co(NH_3)_4Cl_2\right]^+$ is a heteroleptic complex. Statement II: Complex $\left[Co(NH_3)_6\right]^{3+}$ has only one kind of ligands but $\left[Co(NH_3)_4Cl_2\right]^+$ has more than one kind of ligands. In the light of the above statements, choose the correct answer from the options given below:

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During the preparation of Mohr’s salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of $Fe^{2+}$ ion?

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Identify the correct answer.

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Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI. A. $Al^{3+}$ B. $Cu^{2+}$ C. $Ba^{2+}$ D. $Co^{2+}$ E. $Mg^{2+}$ Choose the correct answer from the option given below:

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Identify the major product C formed in the following reaction sequence: $CH_3-CH_2-CH_2-I\xrightarrow{NaCN}A\xrightarrow[\text{Partial hydrolysis}]{OH^-}B\xrightarrow[Br_2]{NaOH}C\ (\text{major})$

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The rate of a reaction quadruples when temperature changes from $27^\circ C$ to $57^\circ C$. Calculate the energy of activation. Given R = 8.314 J K$^{-1}$ mol$^{-1}$, log 4 = 0.6021

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Consider the following reaction in a sealed vessel at equilibrium with concentrations of $N_2=3.0\times10^{-3}$ M, $O_2=4.2\times10^{-3}$ M and $NO=2.8\times10^{-3}$ M. $2NO_{(g)}\rightleftharpoons N_{2(g)}+O_{2(g)}$. If 0.1 mol L$^{-1}$ of $NO_{(g)}$ is taken in a closed vessel, what will be degree of dissociation ($\alpha$) of $NO_{(g)}$ at equilibrium?

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The work done during reversible isothermal expansion of one mole of hydrogen gas at $25^\circ C$ from pressure of 20 atmosphere to 10 atmosphere is: (Given R = 2.0 cal K$^{-1}$mol$^{-1}$)

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Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution for 100 seconds is: (Given: Molar mass of Cu : 63 g mol$^{-1}$, 1F = 96487 C)

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The pair of lanthanoid ions which are diamagnetic is

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Identify the set of correct statements: A. The flowers of Vallisneria are colourful and produce nectar B. The flowers of waterlily are not pollinated by water. C. In most of water-pollinated species, the pollen grains are protected from wetting. D. Pollen grains of some hydrophytes are long and ribbon like. E. In some hydrophytes, the pollen grains are carried passively inside water. Choose the correct answer from the options given below:

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The type of conservation in which the threatened species are taken out from their natural habitat and placed in special setting where they can be protected and given special care is called;

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Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of:

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Bulliform cells are responsible for

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Paper Info

Exam: NEET
Year: 2024
Questions: 169
Duration: 200 mins

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