JEE Main 2025 April 4 Chemistry Question Paper is available for download. NTA conducted JEE Main 2025 Shift 1 B.Tech Exam on 3rd April 2025 from 9:00 AM to 12:00 PM and for JEE Main 2025 B.Tech Shift 2 appearing candidates from 3:00 PM to 6:00 PM. The JEE Main 2025 3rd April B.Tech Question Paper was Moderate to Tough.
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JEE Main 2025 April 4 Shift 2 Chemistry Question Paper with Solutions
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The correct order of basicity for the following molecules is:
The incorrect relationship in the following pairs in relation to ionisation enthalpies is:
Which among the following compounds give yellow solid when reacted with NaOI/NaOH?
Choose the correct answer from the options given below:
A dipeptide, “x”, on complete hydrolysis gives “y” and “z”; “y” on treatment with aqueous HNO\(_2\), produces lactic acid. On the other hand, “z” on heating gives the following cyclic molecule.
Based on the information given, the dipeptide X is:
In which pairs, the first ion is more stable than the second?
Given below are two statements:
Statement (I): Alcohols are formed when alkyl chlorides are treated with aqueous potassium hydroxide by elimination reaction.
Statement (II): In alcoholic potassium hydroxide, alkyl chlorides form alkenes by abstracting the hydrogen from the \( \beta \)-carbon.
In the light of the above statements, choose the most appropriate answer from the options given below:
Given below are two statements:
Statement (I): Molal depression constant \( k_f \) is given by \( \frac{M_1 R T_f}{\Delta S_{fus}} \), where symbols have their usual meaning.
Statement (II): \( k_f \) for benzene is less than the \( k_f \) for water.
In light of the above statements, choose the most appropriate answer from the options given below:
The IUPAC name of the following compound is:
Match List-I with List-II:
List-I List-II
A toxic compound “A” when reacted with NaCN in aqueous acidic medium yields an edible cooking component and food preservative “B”. “B” is converted to “C” by dibromane and can be used as an additive to petrol to reduce emission. “C” upon reaction with oleum at 140°C yields an inhalable anesthetic “D”. Identify “A”, “B”, “C”, and “D”, respectively.
The correct order of \( [FeF_6]^{3-} \), \( [CoF_6]^{3-} \),\( [Ni(CO)_4] \) and \( [Ni(CN)_4]^{2-} \) complex species based on the number of unpaired electrons present is:
Consider the given data:
\[ (a) HCl(g) + 10H_2O(l) \rightarrow HCl.10 H_2O \quad \Delta H = -69.01 \, kJ/mol^{-1} \]
\[ (b) HCl(g) + 40H_2O(l) \rightarrow HCl.40 H_2O \quad \Delta H = -72.79 \, kJ/mol^{-1} \]
Choose the correct statement:
Consider the ground state of an atom (Z = 24). How many electrons are arranged with Azimuthal quantum number \( l = 1 \) and \( l = 2 \) respectively?
Given below are two statements:
Statement (I): The first ionisation enthalpy of group 14 elements is higher than the corresponding elements of group 13.
Statement (II): Melting points and boiling points of group 13 elements are in general much higher than those of the corresponding elements of group 14.
Choose the most appropriate answer from the options given below:
Consider the following plots of log of rate constant \( k (log k)\) vs \( \frac{1}{T} \) for three different reactions. The correct order of activation energies of these reactions is:
Choose the correct answer from the options given below:
‘X’ is the number of electrons in \( t_2g \) orbitals of the most stable complex ion among \( [Fe(NH_3)_6]^{3+} \), \( [Fe(Cl)_6]^{3-} \), \( [Fe(C_2O_4)_3]^{3-} \) and \( [Fe(H_2O)_6]^{3+} \).
The nature of oxide of vanadium of the type \( V_2O_x \) is:
The elements of Group 13 with highest and lowest first ionisation enthalpies are respectively:
Consider the following molecule (X).
The structure of \( X \) is:
Given below are two statements:
Statement (II): Structure III is most stable, as the orbitals having the lone pairs are axial, where the \( \ell p - \beta p \) repulsion is minimum.
In light of the above statements, choose the most appropriate answer from the options given below:
Half-life of zero-order reaction \( A \to \) product is 1 hour, when initial concentration of reaction is 2.0 mol L\(^{-1}\). The time required to decrease concentration of A from 0.50 to 0.25 mol L\(^{-1}\) is:
Sea water, which can be considered as a 6 molar (6 M) solution of NaCl, has a density of 2 g mL\(^{-1}\). The concentration of dissolved oxygen (O\(_2\)) in sea water is 5.8 ppm. Then the concentration of dissolved oxygen (O\(_2\)) in sea water, in x \(\times\) 10\(^{-6}\) m. x = _______. (Nearest integer)
Given: Molar mass of NaCl is 58.5 g mol\(^{-1}\)
Molar mass of O\(_2\) is 32 g mol\(^{-1}\).
The amount of calcium oxide produced on heating 150 kg limestone (75% pure) is _______ kg. (Nearest integer)
Given: Molar mass (in g mol\(^{-1}\)) of Ca-40, O-16, C-12
A metal complex with a formula MC\(\ell_4\)3NH\(_3\) is involved in sp\(^3\)d\(^2\) hybridisation. It upon reaction with excess of AgNO\(_3\) solution gives ‘x’ moles of AgCl. Consider ‘x’ is equal to the number of lone pairs of electron present in central atom of BrF\(_5\). Then the number of geometrical isomers exhibited by the complex is ________
The molar conductance of an infinitely dilute solution of ammonium chloride was found to be 185 S cm\(^{-1}\) mol\(^{-1}\) and the ionic conductance of hydroxyl and chloride ions are 170 and 70 S cm\(^{-1}\) mol\(^{-1}\), respectively. If molar conductance of 0.02 M solution of ammonium hydroxide is 85.5 S cm\(^{-1}\) mol\(^{-1}\), its degree of dissociation is given by x \(\times\) 10\(^{-1}\). The value of x is ______. (Nearest integer)
x mg of Mg(OH)\(_2\) (molar mass = 58) is required to be dissolved in 1.0 L of water to produce a pH of 10.0 at 298 K. The value of x is ____ mg. (Nearest integer)
(Given: Mg(OH)\(_2\) is assumed to dissociate completely in H\(_2\)O)
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