List of top Questions asked in KCET

Sodium enthanoate on heating with soda lime give ‘X’. Electrolysis of aqueous solution of sodium ethanoate gives ‘Y’, ‘X’ and ‘Y’ respectively are :

\(α-D-(+)- glucose\) and \(β-D-(+)- glucose\) are:

The biodegradable polymer obtained by polymerisation of Glycine and Aminocaproic acid is:

Which of the following set of polymers are used as fibre?
(i) Teflon
(ii) Starch
(iii) Terylene
(iv) Orlon

Consider the nuclear fission re action  Assuming all the kinetic energy is carried away by the fast neutrons only
and total binding energies of    MeV and 780 MeV respectively, the average kinetic energy
carried by each fast neutron is (in MeV)

Vapour pressure of a solution containing 18 g of glucose and 178.2 g of water at 100°C is :
(Vapour pressure of pure water at 100°C = 760 torr)

A galaxy is moving away from the Earth so that a spectral line at 600 nm is observed at 601 nm . Then the speed of the galaxy with respect to the Earth is

Light of energy E falls normally on a metal of work function \(\frac{E}{3} \). The kinetic energies (K) of the photo electrons are

0.48 g of an organic compound on complete combustion produced 0.22 g of CO₂ . The percentage of C in the given organic compound is :

Let $(gof)(x) = sin x$ and $(fog)(x) = (sin \sqrt x)^2,$ Then

In the diagram shown, the Zener diode has a reverse breakdown voltage of V_Z . The current through the load resistance R_L is I_L The current through the Zener diode is

Three polaroid sheets are co-axially placed as indicated in the diagram. Pass axes of the polaroids 2 and 3 make 30^o and 90^o with pass axis of polaroid sheet 1. If I₀ is the intensity of the incident unpolarised light entering sheet 1, the intensity of the emergent light through sheet 3 is

When a tertiary alcohol ‘A’ (C₄H₁₀O₄) reacts with 20% H₃PO₄ at 358 K, it gives a compound ‘B’ (C₄H₈) as a major product. The IUPAC name of the compound ‘B’ is :

If \(A=\begin{vmatrix}x&1\\1&x\end{vmatrix}\) and \(B=\begin{vmatrix}x &1&1\\1& x&1 \\1&1&x \end{vmatrix}\),then \(\frac{dB}{dx}\) is

Let f : R ⇢ R be defined by $f (x) = x^2 +1$. Then the pre images of 17 and –3 respectively are

If $S_n$ stands for sum to n-terms of a G.P. with ‘a’ as the first term and ‘r’ as the common ratio then $S_n : S_{2n}$ is

For a particle executing simple harmonic motion (SHM), at its mean position

A ceiling fan is rotating around a fixed axle as shown. The direction of angular velocity is along _______.

How many Coulombs are required to oxidise 0.1 mole of H₂O to oxygen?

Solubility product of CaC₂O₄ at a given temperature in pure water is 4×10^-9 (mol L^-1)². Solubility of CaC₂O₄ at the same temperature is:

If in two circles, arcs of the same length subtend angles 30° and 78° at the centre, then the ratio of their radii is

The family of curves whose x and y intercepts of a tangent at any point are respectively double the x and y coordinates of that point is

In the expansion of $\frac{C_1}{C_0} + 2\frac{C_2}{C_1} +3\frac{C_3}{C_2}+…………… n \frac{C_{n}}{C_{n-1}}$ is equal to

The real value of ‘α’ for which $\frac{1 -isinα}{1+ 2isinα}$ is purely real is