List of top Questions asked in KEAM- 2020

The antimicrobial drug that contains arsenic is

Among the following which one is a non-reducing sugar?

Which one of the following polymer is a copolymer formed by condensation polymerisation?

Choose the correct statement of the following.

Which one of the following can be prepared by Gabriel phthalimide synthesis?

The reagent that is used to distinguish between a secondary amine and a tertiary amine is

Which one of the following compounds would undergo Cannizzaro reaction?

The compound that does not undergo hydrolysis by \(S_N1\) mechanism is

An organic compound \(A\) with molecular formula \(C_7H_6O\) forms 2,4-DNP derivative and reduces Tollens' reagent. When \(A\) is heated with conc. KOH, it gives sodium benzoate and compound \(B\). The compound \(B\) is

Which one of the following is a secondary alcohol?

Which one of the following is a benzenoid aromatic compound?

The products obtained by the ozonolysis of 2-methylbut-1-ene are

Which one of the following is not an isomer of 3-methylbut-1-yne?

The correct formula of dichlorobis(triphenylphosphine) nickel(II) is

Which one of the following is an ambidentate ligand?

Which one is not correctly matched?

Choose the correct statements about diborane. I. It is prepared by the oxidation of sodium borohydride with iodine. II. It undergoes cleavage reactions with Lewis bases to give borane adducts. III. It is produced on an industrial scale by the reaction of \(BF_3\) with \(LiAlH_4\). IV. It is readily hydrolysed by water to give borazine. V. It burns in oxygen and gives boron trioxide.

Which one of the following actinoid has no electron in 6d orbital?

The catalyst used in the Wacker process of oxidation of ethyne to ethanal is

An endothermic reaction \(A\rightarrow B\) has an activation energy of 13 kJ mol\(^{-1}\) and the enthalpy change for the reaction is 2 kJ mol\(^{-1}\). The activation energy of the reaction \(B\rightarrow A\) is

Which of the following statement is incorrect about beryllium?

In the coagulation of a positive sol, the flocculating power of the ions \(PO_4^{3-}\), \(SO_4^{2-}\) and \(Cl^-\) decreases in the order

Which one of the following nitrates does not give the corresponding metallic oxide, nitrogen dioxide and oxygen on heating?

Adsorption is accompanied by

The oxyacid of phosphorus that contains one \(P-OH\), two \(P-H\) and one \(P=O\) bonds is