List of top Chemistry Questions asked in KEAM

Which one of the following transition metal ions shows magnetic moment of 5.92 BM?

The following set of reactions are used in refining zirconium. $Zr (impure) + 2I_2$ ${->[523K]}$ $ZrI_4$ ${->[1800K]}$ Zr (pure) +$2I_2$ This method is known as

Which of the following bases is not present in $DNA$ ?

The covalent bond length is the shortest in which one of the following bonds?

The linkage between the two monosaccharide units in lactose is

The average oxidation state of sulphur in $Na_2S_4O_6$ is

Choose the disproportionation reaction among the following redox reactions

When (-)-2-methylbutan-1-ol is heated with concentrated hydrochloric acid, (+) 1-chloro-2-methylbutane is obtained. The reaction is an example of

Which one of the following reagent will convert acetamide to ethanamine?

In the eclipsed conformation of ethane, the dihedral angle between the hydrogen atoms of adjacent methyl groups is

Which one of the following is an essential amino acid?

Which of the following compounds show optical isomerism? (i) $cis-[Co(NH_3)_4Cl_2]^+$ (ii) $trans-[Co(en)_2Cl_2]^+$ (iii) $cis-[Co(en)_2Cl_2]^+$ (iv) $[Co(en)_3]^{3+}$ Choose the correct answer codes given below