List of top Chemistry Questions asked in KEAM

Choose the amide which on reduction with $ LiAl{{H}_{4}} $ yields a secondary amine
Chlorobenzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is
If the kinetic energy of the particle is increased to $16$ times its previous value, the percentage change in the de Broglie wavelength of the particle is
In which one of the following, d-d transition involves absorption in the ultraviolet region
An inorganic salt $(A)$ is decomposed on heating to give two products $(B)$ and $(C)$. Compound $(C)$ is a liquid at room temperature and is neutral to litmus while the compound $(B)$ is a colourless neutral gas. Compounds $(A)$, $(B)$ and $(C)$ are
Germanium of very high purity is obtained by
The monomers used for their preparation of nylon-$2$-nylon-$6$ is/are
Among the following elements, which one exhibits both positive and negative oxidation states?
The dispersed phase and dispersion medium in soap lather are respectively
The molality of the $3\,M$ solution of methanol if the density of the solution is $0.9\, g\, cm^{-3}$ is
Sulfonation of benzene with excess sulfuric acid provides
20.0 kg of H\(_2\)(g) and 30 kg of H\(_2\)(g) are reacted to produce NH3(g). The amount of NH3(g). formed is
Read the statements regarding muscle proteins. i. Actin is a thin filament and is made up of two $F$-actins, ii. The complex protein, tropomyosin is distributed at regular intervals on the troponin iii. Myosin is a thick filament which is also a polymerized protein iv. The globular head of meromyosin consists of light meromyosin $(LMM)$
Which one of the following is not a sulphide ore?
The element with atomic number 117 has not been discovered yet. In which family would you place this element if discovered?
The dihalogen derivative $'X'$ of a hydrocarbon with three carbon atoms reacts with alcoholic $ KOH $ and produces another hydrocarbon which forms a red precipitate with ammoniacal $ C{{u}_{2}}C{{l}_{2}} $ . $ 'X' $ gives an aldehyde on reaction with aqueous $ KOH $ . The compound $'X'$ is
The correct order of boiling points of $2, 2-dimethylpropane$, $2-methylbutane$ and $n-pentane$ is
For two isomorphous crystals $A$ and $B$, the ratio of density of $A$ to that of $B$ is $1.6$ while the ratio of the edge length of $B$ to that of $A$ is $2$. If the molar mass of crystal $B$ is $200\,g\,mol^{-1}$, then that of crystal $A$ is
The charge on the central metal ion in the complex $[Ni(CO)_4]$ is
The carbonate that will not decompose on heating is
Aldehydes that do not undergo aldol condensation are (1) propanal (2) trichloroethanal (3) methanal (4) ethanal (5) benzaldehyde
Identify the product and its colour when $MnO_2$ is fused with solid $KOH$ in the presence of $O_2$
Disaccharide in milk is
Homolytic fission of a covalent bond leads to the formation of
Gabriel synthesis is used for the synthesis of: