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

The correct increasing order of the acid strength of benzoic acid $(I), 4$ -nitrobenzoic acid $(II), 3,4$ -dinitrobenzoic acid(III) and $4$-methoxybenzoic acid $(IV)$ is

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

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

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

The partial pressure of oxygen in the alveolar air is:

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

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

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

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

The boiling point of para nitrophenol is greater than ortho nitrophenol, because:

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

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

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

The dispersed phase and dispersion medium in soap lather are respectively

Carbohydrates are stored in human body as the polysaccharide

The molality of the $3\,M$ solution of methanol if the density of the solution is $0.9\, g\, cm^{-3}$ is

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

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

The amount of solute (molar mass $ 60\text{ }g\text{ }mo{{l}^{-1}} $ ) that must be added to $180\, g$ of water so that the vapour pressure of water is lowered by $10\%$, is

$0.02$ mole of $[Co(NH_{3})_{5}Br]Cl_{2}$ and $0.02$ mole of $[Co(NH_{3})_{5}Cl]SO_{4}$ are present in $200\, cc$ of a solution $X$. The number of moles of the precipitates $Y$ and $Z$ that are formed when the solution $X$ is treated with excess silver nitrate and excess barium chloride are respectively

Sulfonation of benzene with excess sulfuric acid provides

Portland cement does not contain