List of top Questions asked in KEAM

Chlorination of benzene in the presence of halogen carrier is an example of

Chlorobenzene on treatment with sodium in dry ether gives diphenyl. The name of the reaction is

Choose the amide which on reduction with $ LiAl{{H}_{4}} $ yields a secondary amine

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

The order of reaction is decided by

The partial pressure of oxygen in the alveolar air is:

In the Hofmann rearrangement of primary amides having optically active group with S-configuration, the product amine has

Air at sea level is dense. This is a practical implimentation of:

Allyl cyanide molecule contains

An element 'X' belongs to fourth period and fifteenth group of the Periodic Table. Which one of the following is true ?

Identify the product/s in the following reaction. $ 3C{{H}_{3}}CH=C{{H}_{2}}\xrightarrow[{}]{B{{H}_{3}}}X\xrightarrow[{}]{{{H}_{2}}{{O}_{2}}/O{{H}^{-}}} $ $ product/s+{{H}_{3}}B{{O}_{3}} $

Sodium peroxide which is a yellow solid, when exposed to air becomes white due to the formation of

Aniline is separated from aniline-water mixture by

The $\alpha$- and $\beta$- forms of glucose are

A compound ?A?with molecular formula CHO gives a positive 2, 4 DNP test but a negative Tollen?s test. On treatment with sodium hypochlorite, it gives CHCl and compound ?B?. Compound ?B? is

At $ 500 \,K $ , the half-life period of a gaseous reaction at an initial pressure of $ 80\, kPa $ is $ 350 \,s $ . When the pressure is $ 40 \,kPa $ , the half-life period is $ 175 \,s $ . The order of the reaction is

Carbohydrates are stored in human body as the polysaccharide

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

The monomers used for their preparation of nylon-$2$-nylon-$6$ is/are

In which one of the following, d-d transition involves absorption in the ultraviolet region

Among the following elements, which one exhibits both positive and negative oxidation states?

Among the transition metals of 3d series, the one that has the highest negative $M^{2+} /M$ standard electrode potential is

Germanium of very high purity is obtained by

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