List of top Chemistry Questions

Benzenamine reacts with ethanoic anhydride to give
When ethanamide is treated with \(Br_{2}\) and NaOH in ethanolic solution we get.
An aliphatic amine reacts with Hinsberg's reagent to give a product insoluble in NaOH. The amine is
Which of the following undergoes haloform reaction?
The common name of propanedioic acid is
Benzaldehyde reacts with \(HNO_{3}/H_{2}SO_{4}\) at 273–283 K to give.
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
Intramolecular hydrogen bond is present in
The compound with the lowest pKa value is
Grignard reagent is prepared by the action of
Which of the following organic halogen compound has high reactivity towards \(S_N1\) mechanism?
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?
Eclipsed and staggered forms of n-butane are
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?
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 \(\log(7/2) = 0.544\)].
The hybridisation involved in nickel of the complex ion \([Ni(CN)_4]^{2-}\) is.
When \(KMnO_{4}\) is heated to 513 K the products formed are \(K_{2}MnO_{4}\), \(O_{2}\) and.
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?
Which of the following pair of transition metal ions are diamagnetic?
The standard EMF of the cell \(Mg(s)\,|\,Mg^{2+}(0.01\,M)\,||\,Ag^{+}(0.0001\,M)\,|\,Ag(s)\) is 3.17 V at \(25^{\circ}C\). The EMF of the cell at the same temperature is (2.303RT/F at \(25^{\circ}C\) is 0.06 V).
Hypertonic solution contains
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)