JEE Main questions
34568 published questions with worked solutions.
- Consider the oxides of group 14 elements SiO₂, GeO₂, SnO₂, PbO₂, CO and GeO. The amphoteric oxides are
- The metals that are employed in the battery industries are A. Fe B. Mn C. Ni D. Cr E. Cd Choose the correct answer from the...
- Match List I with List II List I: A. Glucose/NaHCO₃/Δ, B. Glucose/HNO₃, C. Glucose/HI/Δ, D. Glucose/Bromine water List II: I....
- The product (C) in the below mentioned reaction is: CH₃–CH₂–CH₂–Br → (KOH(alc), Δ) → A → (HBr) → B → (Δ, KOH(aq)) → C
- Identify correct statements from below: A. The chromate ion is square planar. B. Dichromates are generally prepared from...
- The correct statements from following are: A. The strength of anionic ligands can be explained by crystal field theory. B....
- For the given reaction, choose the correct expression of K_C from the following. Fe³⁺(aq.) + SCN⁻(aq.) ⇌ (FeSCN)²⁺(aq.)
- Integrated rate law equation for a first order gas phase reaction is given by (where P_i is initial pressure and P_t is total...
- Match List I with List II List I (Technique): A. Distillation, B. Fractional distillation, C. Steam distillation, D. Distillation...
- Identify the mixture that shows positive deviations from Raoult's law.
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: Alcohols react...
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R. Assertion A: pK_a value of...
- A species having carbon with sextet of electrons and can act as electrophile is called
- Given below are two statements: Statement I: IUPAC name of HO–CH₂–(CH₂)₃–CH₂–COCH₃ is 7-hydroxyheptan-2-one. Statement II:...
- Given below are two statements: Statement I: Noble gases have very high boiling points. Statement II: Noble gases are monoatomic...
- Identify the factor from the following that does not affect electrolytic conductance of a solution.
- The 'spin only' magnetic moment for [Ni(NH₃)₆]²⁺ is ________ × 10⁻¹ BM. (given = atomic number of Ni : 28)
- Number of moles of methane required to produce 22 g CO₂(g) after combustion is x × 10⁻² moles. The value of x is ________.
- Number of alkanes obtained on electrolysis of a mixture of CH₃COONa and C₂H₅COONa is ________.
- The ionization energy of sodium in kJ mol⁻¹, if electromagnetic radiation of wavelength 242 nm is just sufficient to ionize...