List of top Chemistry Questions

An aliphatic amine reacts with Hinsberg's reagent to give a product insoluble in NaOH. The amine is
When ethanamide is treated with \(Br_{2}\) and NaOH in ethanolic solution we get.
Benzaldehyde reacts with \(HNO_{3}/H_{2}SO_{4}\) at 273–283 K to give.
Which of the following undergoes haloform reaction?
The common name of propanedioic acid is
The compound with the lowest pKa value is
Intramolecular hydrogen bond is present in
2-Bromopropane reacts with Mg in dry ether to give a product which on treatment with HCHO forms an addition product. The addition product on hydrolysis forms
Grignard reagent is prepared by the action of
Which of the following organic halogen compound has high reactivity towards \(S_N1\) mechanism?
Eclipsed and staggered forms of n-butane are
When 0.25 g of an organic compound is completely oxidised with excess oxygen, 0.22 g of \(CO_{2}\) is produced. What is the percentage of carbon in the compound?
When ethene is treated with \(H_{2}\) in the presence of a catalyst, ethane is formed. This reaction is an example of.
The most acidic hydrogen is present in
Which of the following is a didentate ligand?
Which of the following pair of lanthanide elements have the same atomic radii?
The rate equation for the reaction \(xA + yB \rightarrow mC + nD\) is rate \(= k[A]^{1/2}[B]^{3/2}\). What is the total order of the reaction?
When \(KMnO_{4}\) is heated to 513 K the products formed are \(K_{2}MnO_{4}\), \(O_{2}\) and.
The hybridisation involved in nickel of the complex ion \([Ni(CN)_4]^{2-}\) is.
The rate constant of a reaction at 500 K is 0.02 and it increased to 0.07 at 700 K. The \(E_a\) value of the reaction is about [Given: \(R = 8.3 \, J\,K^{-1}\,mol^{-1}\) and \(\log(7/2) = 0.544\)].
Which of the following pair of transition metal ions are diamagnetic?
Hypertonic solution contains
Molal boiling point elevation is the least for the solvent
The decomposition of \(H_{2}O_{2}\) in the presence of \(I^{-}\) in alkaline medium has the rate law.
The mass of Al deposited when 2 ampere current is passed through a solution of $Al_2(SO_4)_3$ for 1 hour is (F = 96500 C)