List of top Questions asked in KEAM

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
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 $(LMM)$
A body of mass $60 \,kg$ suspended by means of three strings $P, Q$ and $R$ as shown in the figure is in equilibrium. The tension in the string $P$ is
$\int\frac{1}{\sin x\, \cos x}$ dx is equal to
If $A = \begin{pmatrix}1&5\\ 0&2\end{pmatrix}$ , then
The direction of propagation of electromagnetic wave is along
The area under velocity-time graph for a particle in a given interval of time represents
If $|z + 1| < |z - 1|$ , then $z$ lies
If $a$ is positive and if $A$ and $G$ are the arithmetic mean and the geometric mean of the roots of $ {{x}^{2}}-2ax+{{a}^{2}}=0 $ respectively, then
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?
A solid cylinder rolls down an inclined plane of height 3 m and reaches the bottom of plane with angular velocity, of 2 $ \sqrt {2} rads ^{-1} $ . The radius of cylinder must be (Take g = 10 $ ms ^{-2}$ )
A wire of natural length $ l, $ Youngs modulus $ Y $ and area of cross-section $ A $ is extended by $ x $ . Then the energy stored in the wire is given by
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
Cetyltrimethylammonium bromide is a popular
The correct order of boiling points of $2, 2-dimethylpropane$, $2-methylbutane$ and $n-pentane$ is
A transverse wave is described by the equation $ y={{y}_{0}}\sin 2\pi \left( ft-\frac{x}{\lambda } \right). $ The maximum particle velocity is equal to four times the wave velocity, if
The carbonate that will not decompose on heating is
Identify the product and its colour when $MnO_2$ is fused with solid $KOH$ in the presence of $O_2$
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
Aldehydes that do not undergo aldol condensation are (1) propanal (2) trichloroethanal (3) methanal (4) ethanal (5) benzaldehyde
The charge on the central metal ion in the complex $[Ni(CO)_4]$ is