JEE Main 2023 (Online) 6th April Morning Shift

Match List I with List II

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Match List I with List II

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The number of species from the following which have square pyramidal structure is _________
\(\mathrm{PF}_{5}, \mathrm{BrF}_{4}^{-}, \mathrm{IF}_{5}, \mathrm{BrF}_{5}, \mathrm{XeOF}_{4}, \mathrm{ICl}_{4}^{-}\)

For a concentrated solution of a weak electrolyte (\(\mathrm{K}_{\text {eq }}=\) equilibrium constant) \(\mathrm{A}_{2} \mathrm{B}_{3}\) of concentration '\(c\)', the degree of dissociation '\(\alpha\)' is :

Match List I with List II

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The major products A and B from the following reactions are:

The major product formed in the following reaction is

Compound \(\mathrm{P}\) is neutral, \(\mathrm{Q}\) gives effervescence with \(\mathrm{NaHCO}_{3}\) while \(\mathrm{R}\) reacts with Hinsbergs reagent to give solid soluble in \(\mathrm{NaOH}\). Compound \(\mathrm{P}\) is

Given below are two statements, one is labelled as Assertion \(\mathbf{A}\) and the other is labelled as Reason \(\mathbf{R}\).
Assertion A: The spin only magnetic moment value for \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\) is $$1.7...

Number of ambidentate ligands in a representative metal complex \(\left[\mathrm{M}(\mathrm{en})(\mathrm{SCN})_{4}\right]\) is ___________.
[en = ethylenediamine]

Strong reducing and oxidizing agents among the following, respectively, are :

The standard electrode potential of \(\mathrm{M}^{+} / \mathrm{M}\) in aqueous solution does not depend on

The possibility of photochemical smog formation is more at :

For the reaction

The correct statement is

Number of bromo derivatives obtained on treating ethane with excess of \(\mathrm{Br}_{2}\) in diffused sunlight is ___________

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Loss of electron from hydrogen atom results in nucleus of \(\sim 1.5 \times 10^{-3} \mathrm{pm}\) size.
Reason R : Proton $$...

The setting time of Cement is increased by adding :

Match List I with List II

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The difference between electron gain enthalpies will be maximum between :

Polymer used in orlon is :

Match List I with List II

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Which of the following options are correct for the reaction
$$2\left[\mathrm{Au}(\mathrm{CN})_{2}\right]^{-}(\mathrm{aq})+\mathrm{Zn}(\mathrm{s}) \rightarrow 2 \mathrm{Au}(\mathrm{s})+\left[\mathrm{Zn}(\mathrm{CN})_{4}\right]^{2-}(\mathrm{a...

In ammonium - phosphomolybdate, the oxidation state of Mo is + ___________

A compound is formed by two elements \(\mathrm{X}\) and \(\mathrm{Y}\). The element \(\mathrm{Y}\) forms cubic close packed arrangement and those of element \(\mathrm{X}\) occupy one third of the tetrahedral voids. What is the formula of th...

Mass of Urea \(\left(\mathrm{NH}_{2} \mathrm{CONH}_{2}\right)\) required to be dissolved in \(1000 \mathrm{~g}\) of water in order to reduce the vapour pressure of water by \(25 \%\) is _________ g. (Nearest integer)
Given: Molar mass of N...

If 5 moles of \(\mathrm{BaCl}_{2}\) is mixed with 2 moles of \(\mathrm{Na}_{3} \mathrm{PO}_{4}\), the maximum number of moles of \(\mathrm{Ba}_{3}\left(\mathrm{PO}_{4}\right)_{2}\) formed is ___________ (Nearest integer)

The wavelength of an electron of kinetic energy \(4.50\times10^{-29}\) J is _________ \(\times 10^{-5}\) m. (Nearest integer)
Given : mass of electron is \(9\times10^{-31}\) kg, h \(=6.6\times10^{-34}\) J s

For the adsorption of hydrogen on platinum, the activation energy is \(30 ~\mathrm{k} ~\mathrm{J} \mathrm{mol}^{-1}\) and for the adsorption of hydrogen on nickel, the activation energy is \(41.4 ~\mathrm{k} ~\mathrm{J} \mathrm{mol}^{-1}\)....

Consider the graph of Gibbs free energy G vs Extent of reaction. The number of statement/s from the following which are true with respect to points (a), (b) and (c) is _________

A. Reaction is spontaneous at (a) and (b)
B. Reaction is at e...

The value of \(\log \mathrm{K}\) for the reaction \(\mathrm{A} \rightleftharpoons \mathrm{B}\) at \(298 \mathrm{~K}\) is ___________. (Nearest integer)
Given: \(\Delta \mathrm{H}^{\circ}=-54.07 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
$$\Delta \ma...