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Chemistry · 2025 · 3 Apr · Shift 1

25 questions from this JEE Main paper

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2025 · 3 Apr · Shift 1
Chemistry

Chemistry · 2025 · 3 Apr · Shift 1

25 questions from this JEE Main paper

Coordination Compounds3 questions Periodic Table and Periodicity1 questions Compounds Containing Nitrogen2 questions Structure of Atom1 questions Chemical Equilibrium2 questions P Block Elements1 questions Hydrocarbons1 questions Solutions2 questions Basics of Organic Chemistry2 questions Some Basic Concepts of Chemistry3 questions D and F Block Elements2 questions Biomolecules1 questions Electrochemistry1 questions Chemical Kinetics and Nuclear Chemistry1 questions Aldehydes Ketones and Carboxylic Acids1 questions Thermodynamics1 questions

Q1.The correct order of the complexes $[Co (NH_{3})_{5} (H_{2} O)]^{3 +} (A), [Co (NH_{3})_{6}]^{3 +} (B), [Co (CN)_{6}]^{3 -} (C)$ …
Chemistry · Coordination Compounds · MCQ
Q2.Which of the following statements are correct? A. The process of adding an electron to a neutral gaseous atom is always exothermic. B. The process of removing an electron from an isolated gaseous atom is always endothermic. C. The $1^{st}$ …
Chemistry · Periodic Table and Periodicity · MCQ
Q3. $Identify [A], [B] and [C], respectively in the following reaction sequence :$ Includes diagram
Chemistry · Compounds Containing Nitrogen · MCQ
Q4. $Match the LIST-I with LIST-II$ $Choose the correct answer from the options given below:$ Includes table
Chemistry · Coordination Compounds · MCQ
Q5.Which of the following postulate of Bohr's model of hydrogen atom is not in agreement with quantum mechanical model of an atom?
Chemistry · Structure of Atom · MCQ
Q6.In the following system, $PCl_{5} (g) ⇋ PCl_{3} (g) + Cl_{2} (g)$ at equilibrium, upon addition of xenon gas at constant T \& p , the concentration of
Chemistry · Chemical Equilibrium · MCQ
Q7. $In the following reactions, which one is NOT correct?$
Chemistry · Compounds Containing Nitrogen · MCQ
Q8.Given below are two statements : Statement I : The N - N single bond is weaker and longer than that of P - P single bond. Statement II : Compounds of group 15 elements in +3 oxidation states readily undergo disproportionation reactions. In…
Chemistry · P Block Elements · MCQ
Q9. $Which compound would give 3-methyl-6-oxoheptanal upon ozonolysis?$
Chemistry · Hydrocarbons · MCQ
Q10.2 moles each of ethylene glycol and glucose are dissolved in 500 g of water. The boiling point of the resulting solution is: (Given : Ebullioscopic constant of water $= 0.52 K kg mol^{- 1}$ )
Chemistry · Solutions · MCQ
Q11.Which of the following properties will change when system containing solution 1 will become solution 2 ? Includes diagram
Chemistry · Solutions · MCQ
Q12. $Identify the correct statements from the following.$ $Choose the correct answer from the options given below:$ Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q13. $The least acidic compound, among the following is:$ Includes diagram
Chemistry · Basics of Organic Chemistry · MCQ
Q14.Among $1 0^{- 9} g$ (each) of the following elements, which one will have the highest number of atoms? Element: $Pb, Po, Pr$ and Pt
Chemistry · Some Basic Concepts of Chemistry · MCQ
Q15.The metal ions that have the calculated spin-only magnetic moment value of 4.9 B.M. are : A. $Cr^{2 +}$ B. $Fe^{2 +}$ C. $Fe^{3 +}$ D. $Co^{2 +}$ E. $Mn^{3 +}$ Choose the correct answer from the…
Chemistry · D and F Block Elements · MCQ
Q16. $Which of the following is the correct structure of L-Fructose?$
Chemistry · Biomolecules · MCQ
Q17.Given below are two statements : Statement I : A catalyst cannot alter the equilibrium constant $(K_{c})$ of the reaction, temperature remaining constant. Statement II : A homogenous catalyst can change the…
Chemistry · Chemical Equilibrium · MCQ
Q18.Correct order of limiting molar conductivity for cations in water at 298 K is :
Chemistry · Electrochemistry · MCQ
Q19.In a reaction $A + B \to C$ , initial concentrations of $A$ and $B$ are related as $[A]_{0} = 8 [B]_{0}$ . The half lives of $A$ and $B$ are 10 min and 40 min , respectively. If they start to disappear at the same time, both following first…
Chemistry · Chemical Kinetics and Nuclear Chemistry · MCQ
Q20.Number of molecules from below which cannot give iodoform reaction is : Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol.
Chemistry · Aldehydes Ketones and Carboxylic Acids · MCQ
Q21. $During estimation of nitrogen by Dumas’ method of compound X (0.42 g)$ mL of $N_{2}$ gas will be liberated at STP. (nearest integer) (Given molar mass in $g mol^{- 1} : C : 12, H : 1, N : 14$ … Includes diagram
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q22.Consider the following reactions $A + Little amount NaCl + H_{2} SO_{4} \to CrO_{2} Cl_{2} + Side Products CrO_{2} Cl_{2 (Vapour)} + NaOH \to B + NaCl + H_{2} O B + H^{+} \to C + H_{2} O$ …
Chemistry · D and F Block Elements · Numerical
Q23.0.5 g of an organic compound on combustion gave 1.46 g of $CO_{2}$ and 0.9 g of $H_{2} O$ . The percentage of carbon in the compound is . (Nearest integer) [Given : Molar mass (in $g mol^{- 1}) C : 12, H : 1, O : 16$ …
Chemistry · Some Basic Concepts of Chemistry · Numerical
Q24.The number of optical isomers exhibited by the iron complex $(A)$ obtained from the following reaction is . $FeCl_{3} + KOH + H_{2} C_{2} O_{4} \to A$
Chemistry · Coordination Compounds · Numerical
Q25.Given : $Δ H^{⊖}_{sub} [C (graphite)] = 710 kJ mol^{- 1} Δ_{C - H} H^{⊖} = 414 kJ mol^{- 1} Δ_{H - H} H^{⊖} = 436 kJ mol^{- 1} Δ_{C} = C H^{⊖} = 611 kJ mol^{- 1}$ …
Chemistry · Thermodynamics · Numerical