List of top Questions asked in KEAM

Consider the following statements :
(i) For every positive real number $x$, $x - 10$ is positive.
(ii) Let $n$ be a natural number. If $n^2$ is even, then $n$ is even.
(iii) If a natural number is odd, then its square is also odd.
Then

Two strings of the same material and same length are given equal tension. If they are vibrating with fundamental frequencies \( 1600 \text{ Hz} \) and \( 900 \text{ Hz} \), then the ratio of their respective diameters is

On an average, the number of neutrons and the energy of a neutron released per fission of a uranium atom are respectively

The semi-major axis of the orbit of Saturn is approximately nine times that of Earth. The time period of revolution of Saturn is approximately equal to

IUPAC name of the compound \([\text{Co}(\text{NH}_3)_5\text{ONO}]\text{Cl}_2\) is

Find A, B, C

1-phenyl-2-chlorobutane on reaction with EtOH/EtOK produces a product which on treatment with HBr produces

For chemical reaction M \(\rightarrow\) N, the rate becomes 8 times when the concentration of M doubles, find the order of reaction with respect to M?

When sodium fusion extract of a compound is boiled with Iron (II)sulphate and then acidified with conc.sulphuric acid blood red colour is produced. The compound is ——?

Which is incorrect regarding Bohr model?

For a reaction \(\text{N}_2 + \text{O}_2 \rightleftharpoons 2\text{NO}\) . Given that \([\text{N}_2] = 2 \times 10^{-3}\), \([\text{O}_2] = 3 \times 10^{-3}\), \([\text{NO}] = 6 \times 10^{-6}\) Find the value of \(\text{K}_{\text{c}}\) for the reaction

Which of the following orbitals donot have 4 lobes?

Find the rate constant of a first order reaction A \(\rightarrow\) B reaction where \(\text{t}_{1/2} = 10 \text{ minutes}\) at \(300 \text{ K}\) is (Given log 2 = 0.3)

IUPAC official name for the element shows atomic number 110?

For a \(\text{I}^{\text{st}}\) order reaction, 99% complete in 20 minutes, then the \(\text{t}_{1/2}\) will be : (log2 = 0.3)

Which of the following yields Tarry product during oxidation:

Which among the following elements shows same atomic radius?

Find the % of composition of carbon in methane:

Which of the following has Van't Hoff factor (i) 1.82? (m = 0.01)

Formula of Hinsberg reagent?

Oxidation state of oxygen in \(\text{H}_2\text{O}_2\)

Which of the following lanthanoid ion is cloured?

Find the bond length of O \(-\) H in methanol

Match the following

Which among the following is most basic in aqueous medium