KCET 2019

Paper was held on
Tue, Apr 30, 2019 4:30 AM

## Chemistry

Which of the following possess net dipole moment?

View Question The number of $$\pi$$-bonds and $$\sigma$$-bonds present in naphthalene are respectively

View Question The reaction in which $$\Delta H=\Delta U$$ is

View Question The number of moles of electron required to reduce 0.2 mole of $$\mathrm{Cr}_2 \mathrm{O}_7^{-2}$$ to $$\mathrm{Cr}^{+3}

View Question In the reaction
$$\mathrm{B}(\mathrm{OH})_3+2 \mathrm{H}_2 \mathrm{O} \rightarrow\left[B(\mathrm{OH})_4\right]^{-}+\math

View Question Match the following acids with their $$pKa$$ values :
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View Question Which of the following can be used to test the acidic nature of ethanol?

View Question
The reagents $$A, B$$ and $$C$$ respectively are

View Question Propanoic acid undergoes HVZ reaction to give chloropropanoic acid. The product obtained is

View Question $$P \xrightarrow{\mathrm{H}_2 / \text { Pd- } \mathrm{BaSO}_4} Q \xrightarrow[\text { (ii)Dil. } \mathrm{HCl}]{\text { (

View Question Among the following, the main reactions occurring in blast furnace during extraction of iron from haematite are
(i) $$\m

View Question Which of the following pair contains 2 lone pair of electrons on the central atom?

View Question Which of the following statement is correct?

View Question 0.1 mole of $$\mathrm{XeF}_6$$ is treated with $$1.8 \mathrm{~g}$$ of water. The product obtained is

View Question In the reaction of gold with aquaregia, oxidation state of nitrogen changes from

View Question The vitamin that helps in clotting of blood is

View Question The polymer containing five methylene groups in it s repeating unit is

View Question Cis-1, 4-polyisoprene is called

View Question Which cleansing agent gets precipitated in hard water?

View Question Anti-histamine among the following is

View Question The elements in which electrons are progressively filled in $$4 f$$-orbital are called

View Question Incorrect statement with reference to $$\mathrm{Ce}(Z=58)$$ is

View Question A mixture of $$\mathrm{NaCl}$$ and $$\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$$ is heated with conc. $$\mathrm{H}_2 \math

View Question Which of the following statements is wrong?

View Question Which among the following is the strongest ligand?

View Question Which of the following is a network crystalline solid?

View Question The number of atoms in $$2.4 \mathrm{~g}$$ of body centred cubic crystal with edge length $$200 \mathrm{pm}$$ is (densit

View Question 1 mole of $$\mathrm{NaCl}$$ is doped with $$10^{-5}$$ mole of $$\mathrm{SrCl}_2$$. The number of cationic vacancies in t

View Question A non-volatile solute, '$$A$$' tetramerises in water to the extent of $$80 \%.$$ $$2 .5 \mathrm{~g}$$ of '$$A$$' in $$10

View Question Solution '$$A$$' contains acetone dissolved in chloroform and solution '$$B$$' contains acetone dissolved in carbon disu

View Question The mass of $$\mathrm{AgCl}$$ precipitated when a solution containing $$11.70 \mathrm{~g}$$ of $$\mathrm{NaCl}$$ is adde

View Question Two particle $$A$$ and $$B$$ are in motion. If the wavelength associated with '$$A$$' is $$33.33 \mathrm{~nm}$$, the wav

View Question The first ionisation enthalpy of the following elements are in the order :

View Question Solubility of AgCl is least in

View Question Which of the following equations does not represent Charles's law for a given mass of gas at constant pressure?

View Question Which is the most suitable reagent for the following conversion?

View Question Which of the following is least soluble in water at $$298 \mathrm{~K}$$ ?

View Question If aniline is treated with $$1: 1$$ mixture of conc. $$\mathrm{HNO}_3$$ and conc. $$\mathrm{H}_2 \mathrm{SO}_4$$, p-nitr

View Question In nucleic acids, the nucleotides are joined together by

View Question Which of the following is generally water insoluble?

View Question Relative lowering of vapour pressure of a dilute solution of glucose dissolved in $$1 \mathrm{~kg}$$ of water is 0.002 .

View Question One litre solution of $$\mathrm{MgCl}_2$$ is electrolysed completely by passing a current of $$1 \mathrm{~A}$$ for $$16

View Question An aqueous solution of $$\mathrm{CuSO}_4$$ is subjected to electrolysis using inert electrodes. The $$\mathrm{pH}$$ of t

View Question Give $$E_{\mathrm{Mn}^{+7} \mid \mathrm{Mn}^{+2}}^0=1.5 \mathrm{~V}$$ and $$E_{\mathrm{Mn}^{+4}\mid \mathrm{Mn}^{+2}}^0=

View Question The plot of $$t_{1 / 2} \mathrm{~v} / \mathrm{s}~[R]_0$$ for a reaction is a straight-line parallel to $$X$$-axis. The u

View Question The metal nitrate that liberates $$\mathrm{NO}_2$$ on heating

View Question Which of the following is not true regarding the usage of hydrogen as a fuel?

View Question Resonance effect is not observed in

View Question 2-butyne is reduced to trans-but-2-ene using

View Question Eutrophication causes

View Question Addition of excess of $$\mathrm{AgNO}_3$$ to an aqueous solution of 1 mole of $$\mathrm{PdCl}_2 \cdot 4 \mathrm{NH}_3$$

View Question The formula of pentaaquanitratochromium (III) nitrate is,

View Question Which of the following halide undergoes hydrolysis on warming with water/aqueous $$\mathrm{NaOH}$$ ?

View Question The compound having longest C$$-$$Cl bond is

View Question The alkyl halides required to prepare by Wurtz reaction are

View Question Which is a wrong statement?

View Question 1L of $$2 \mathrm{M~CH}_3 \mathrm{COOH}$$ is mixed with 1L of $$3 \mathrm{M} \mathrm{~C}_2 \mathrm{H}_5 \mathrm{OH}$$ to

View Question Which of the following is an example of homogeneous catalysis?

View Question Critical Micelle concentration for a soap solution is $$1.5 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}$$. Micelle for

View Question Oxidation state of copper is +1 in

View Question ## Mathematics

The inverse of the matrix $$\left[\begin{array}{ccc}2 & 5 & 0 \\ 0 & 1 & 1 \\ -1 & 0 & 3\end{array}\right]$$ is

View Question If $$P$$ and $$Q$$ are symmetric matrices of the same order then $$P Q-Q P$$ is

View Question If $$3 A+4 B^{\prime}=\left[\begin{array}{ccc}7 & -10 & 17 \\ 0 & 6 & 31\end{array}\right]$$ and $$2 B+3 A^{\prime}\left

View Question If $$A=\left[\begin{array}{ll}1 & 3 \\ 4 & 2\end{array}\right], B=\left[\begin{array}{cc}2 & -1 \\ -1 & 2\end{array}\rig

View Question If the value of a third order determinant is 16, then the value of the determinant formed by replacing each of its eleme

View Question $$\int x^3 \sin 3 x d x=$$

View Question The area of the region above $$X$$-axis included between the parabola $$y^2=x$$ and the circle $$x^2+y^2=2 x$$ in square

View Question The area of the region bounded by $$Y$$-axis, $$y=\cos x$$ and $$y=\sin x, 0 \leq x \leq \frac{\pi}{2}$$ is

View Question The integrating factor of the differential equation $$\left(2 x+3 y^2\right) d y=y d x(y>0)$$ is

View Question The equation of the curve passing through the point $$(1,1)$$ such that the slope of the tangent at any point $$(x, y)$$

View Question Foot of the perpendicular drawn from the point $$(1,3,4)$$ to the plane $$2 x-y+z+3=0$$ is

View Question Acute angel between the line $$\frac{(x-5)}{2}=\frac{y+1}{-1}=\frac{z+4}{1}$$ and the plane $$3 x-4 y-z+5=0$$ is

View Question The distance of the point $$(1,2,1)$$ from the line $$\frac{x-1}{2}=\frac{y-2}{1}=\frac{z-3}{2}$$ is.

View Question $$X Y$$ plane divides the line joining the points $$A(2,3,-5)$$ and $$B(-1,-2,-3)$$ in the ratio

View Question The shaded region in the figure is the solution set of the inequations.

View Question The constant term in the expansion of $$\left|\begin{array}{ccc}3 x+1 & 2 x-1 & x+2 \\ 5 x-1 & 3 x+2 & x+1 \\ 7 x-2 & 3

View Question If $$[x]$$ represents the greatest integer function and $$f(x)=x-[x]-\cos x$$, then $$f^{\prime}\left(\frac{\pi}{2}\righ

View Question If $$f(x)=\left\{\begin{array}{cl}\frac{\sin 3 x}{e^{2 x}-1} ; & x \neq 0 \\ k-2 ; & x=0\end{array}\right.$$ is continuo

View Question If $$f(x)=\sin ^{-1}\left(\frac{2^{x+1}}{1+4^x}\right)$$ then $$f^{\prime}(0)=$$

View Question If $$x=a \sec ^2 \theta$$ & $$y=a \tan ^2 \theta$$, then $$\frac{d^2 y}{d x^2}=$$

View Question If $$\alpha$$ and $$\beta$$ are roots of the equation $$x^2=x+1=0$$, then $$\alpha^2+\beta^2$$ is

View Question The number of 4 digit numbers without repetition that can be formed using the digits $$1,2,3,4,5,6,7$$ in which each num

View Question The number of terms in the expansion of $$\left(x^2+y^2\right)^{25}-\left(x^2-y^2\right)^{25}$$ after simplification is

View Question The third term of a GP is 9. The product of its first five terms is

View Question A line cuts off equal intercepts on the co-ordinate axes. The angle made by this line with the positive direction of $$X

View Question The eccentricity of the ellipse $$9 x^2+25 y^2=225$$ is

View Question $$\sum_\limits{r=1}^n(2 r-1)=x$$ then, $$
\lim _\limits{n \rightarrow \infty}\left[\frac{1^3}{x^2}+\frac{2^3}{x^2}+\frac

View Question The negative of the statement "All continuous functions are differentiable."

View Question Mean and standard deviation of 100 items are 50 and 4 , respectively. The sum of all squares of the items is

View Question Two letters are chosen from the letters of the word 'EQUATIONS'. The probability that one is vowel and the other is cons

View Question $$f: R \rightarrow R$$ and $$g:[0, \infty) \rightarrow R$$ is defined by $$f(x)=x^2$$ and $$g(x)=\sqrt{x}$$. Which one o

View Question If $$A=\{x \mid x \in N, x \leq 5\},B=\left\{x \mid x \in Z, x^2-5 x+6=0\right\}$$, then the number of onto functions fr

View Question On the set of positive rational, a binary operation * is defined by $$a * b=\frac{2 a b}{5}$$. If $$2 * x=3^{-1}$$, then

View Question $$\cos \left[2 \sin ^{-1} \frac{3}{4}+\cos ^{-1} \frac{3}{4}\right]=$$

View Question If $$a+\frac{\pi}{2}

View Question If $$|3 x-5| \leq 2$$ then

View Question A random variable '$$X$$' has the following probability distribution
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View Question If $$A$$ and $$B$$ are two events of a sample space $$S$$ such that $$P(A)=0.2, P(B)=0.6$$ and $$P(A \mid B)=0.5$$ then

View Question If '$$X$$' has a binomial distribution with parameters $$n=6, p$$ and $$P(X=2)=12$$, $$P(X=3)=5$$ then $$P=$$

View Question A man speaks truth 2 out of 3 times. He picks one of the natural numbers in the set $$S=\{1,2,3,4,5,6,7\}$$ and reports

View Question The order of the differential equation $$y=C_1 e^{C_2+x}+C_3 e^{C_4+x}$$ is

View Question If $$|\mathbf{a}|=16,|\mathbf{b}|=4$$, then $$\sqrt{|\mathbf{a} \times \mathbf{b}|^2+|\mathbf{a} \cdot \mathbf{b}|^2}=$$

View Question If the angle between $$\mathbf{a}$$ & $$\mathbf{b}$$ is $$\frac{2 \pi}{3}$$ and the projection of $$\mathbf{a}$$ in the

View Question A unit vector perpendicular to the plane containing the vector $$\hat{\mathbf{i}}+2 \hat{\mathbf{j}}+\hat{\mathbf{k}}$$

View Question $$[\mathbf{a}+2 \mathbf{b}-\mathbf{c}, \mathbf{a}-\mathbf{b}, \mathbf{a}-\mathbf{b}-\mathbf{c}]=$$

View Question $$\sqrt[3]{y} \sqrt{x}=\sqrt[6]{(x+y)^5}$$, then $$\frac{d y}{d x}=$$

View Question Rolle's theorem is not applicable in which one of the following cases?

View Question The interval in which the function $$f(x)=x^3-6 x^2+9 x+10$$ is increasing in

View Question The sides of an equilateral triangle are increasing at the rate of $$4 \mathrm{~cm} / \mathrm{sec}$$. The rate at which

View Question The value of $$\sqrt{24.99}$$ is

View Question $$\int_\limits{-3}^3 \cot ^{-1} x d x=$$

View Question $$\int \frac{1}{\sqrt{x}+x \sqrt{x}} d x=$$

View Question $$\begin{aligned}
& \int \frac{2 x-1}{(x-1)(x+2)(x-3)} d x \\
& \quad=A \log |x-1|+B \log |x+2|+C \log |x-3|+K
\end{alig

View Question $$\int_\limits0^2\left[x^2\right] d x=$$

View Question $$\int_\limits0^1 \sqrt{\frac{1+x}{1-x}} d x=$$

View Question If $$U$$ is the universal set with 100 elements; $$A$$ and $$B$$ are two set such that $$n(A)=50, n(B)=60, n(A \cap B)=2

View Question The domain of the function $$f: R \rightarrow R$$ defined by $$f(x)=\sqrt{x^2-7 x+12}$$ is

View Question If $$\cos x=|\sin x|$$ then, the general solution is

View Question $$\sqrt{3} \operatorname{cosec} 20^{\circ}-\sec 20^{\circ}=$$

View Question If $$P(n): 2^n

View Question ## Physics

Which one of the following nuclei has shorter mean life?

View Question The conductivity of semiconductor increases with increase in temperature because

View Question For a transistor amplifier, the voltage gain

View Question In the following circuit, what are P and Q?

View Question An antenna uses electromagnetic waves of frequency $$5 \mathrm{~MHz}$$.
For proper working, the size of the antenna shou

View Question A magnetic needle has a magnetic moment of $$5 \times 10^{-2} \mathrm{~Am}^2$$ and moment of inertia $$8 \times 10^{-6}

View Question A toroid has 500 turns per meter length. If it carries a current of $$2 \mathrm{A}$$, the magnetic energy density inside

View Question Consider the situation given in figure. The wire $$A B$$ is slid on the fixed rails with a constant velocity. If the wir

View Question The frequency of an alternating current is $$50 \mathrm{~Hz}$$. What is the minimum time taken by current to reach its p

View Question The readings of ammeter and voltmeter in the following circuit are respectively

View Question Two metal plates are separated by $$2 \mathrm{~cm}$$. The potentials of the plates are $$-10 \mathrm{~V}$$ and $$+30 \ma

View Question The equivalent capacitance between A and B is

View Question A capacitor of capacitance $$C$$ charged by an amount $$Q$$ is connected in parallel with an uncharged capacitor of capa

View Question Though the electron drift velocity is small and electron charge is very small, a conductor can carry an appreciably larg

View Question Masses of three wires of copper are in the ratio $$1: 3: 5$$ and their lengths are in the ratio $$5: 3: 1$$. The ratio o

View Question If $$P, Q$$ and $$R$$ are physical quantities having different dimensions, which of the following combinations can never

View Question The given graph shows the variation of velocity $$v$$ with position $$x$$ for a particle moving along a straight line
W

View Question The trajectory of a projectile projected from origin is given by the equation $$y=x-\frac{2 x^2}{5}$$. The initial veloc

View Question An object with mass $$5 \mathrm{~kg}$$ is acted upon by a force, $$\mathbf{F}=(-3 \hat{\mathbf{i}}-4 \hat{\mathbf{j}}) \

View Question During inelastic collision between two objects, which of the following quantity always remains conserved?

View Question In Rutherford experiment, for head-on collision of $$\alpha$$-particles with a gold nucleus, the impact parameter is

View Question Frequency of revolution of an electron revolving in $$n$$th orbit of $$\mathrm{H}$$-atom is proportional to

View Question A hydrogen atom is ground state absorbs $$10.2 \mathrm{~eV}$$ of energy. The orbital angular momentum of the electron is

View Question The end product of decay of $${ }_{90} \mathrm{Th}^{232}$$ is $${ }_{82} \mathrm{~Pb}^{208}$$. The number of $$\alpha$$

View Question Two protons are kept at a separation of $$10 \mathrm{~nm}$$. Let $$F_n$$ and $$F_e$$ be the nuclear force and the electr

View Question Two particles which are initially at rest move towards each other under the action of their mutual attraction. If their

View Question A particle is moving uniformly along a straight line as shown in the figure. During the motion of the particle from $$A$

View Question A satellite is orbiting close to the earth and has a kinetic energy $$K$$. The minimum extra kinetic energy required by

View Question A wire is stretched such that its volume remains constant. The poission's ratio of the material of the wire is

View Question A cylindrical container containing water has a small hole at height of $$H=8 \mathrm{~cm}$$ from the bottom and at a dep

View Question A transparent medium shows relation between $$i$$ and $$r$$ as shown. If the speed of light in vacuum is $$c$$, the Brew

View Question If Young's double slit experiment, using monochromatic light of wavelength $$\lambda$$, the intensity of light at a poin

View Question Due to Doppler's effect the shift in wavelength observed is $$0.1 \mathop A\limits^o$$ for a star producing wavelength $

View Question An electron is moving with an initial velocity $$\mathbf{v}=v_0 \hat{\mathbf{i}}$$ and is in a uniform magnetic field $$

View Question Light of certain frequency and intensity incident on a photosensitive material causes photoelectric effect. If both the

View Question A certain charge $$2 Q$$ is divided at first into two parts $$q_1$$ and $$q_2$$. Later the charges are placed at a certa

View Question A particle of mass $$m$$ and charge $$q$$ is placed at rest in uniform electric field $$E$$ and then released. The kinet

View Question An electric dipole is kept in non-uniform electric field. It generally experiences

View Question The figure gives the electric potential $$V$$ as a function of distance through four regions on $$x$$-axis. Which of the

View Question A system of two charges separated by a certain distance apart stores electrical potential energy. If the distance betwee

View Question In a cyclotron a charged particle

View Question The number of turns in a coil of galvanometer is tripled, then

View Question A circular current loop of magnetic moment $$M$$ is in a arbitrary orientation in an external uniform magnetic field $$\

View Question In a permanent magnet at room temperature

View Question Coersivity of a magnet where the ferromagnet gets completely demagnetized is $$3 \times 10^3 \mathrm{~Am}^{-1}$$. The mi

View Question An inductor of inductance $$L$$ and resistor $$R$$ are joined together in series and connected by a source of frequency

View Question An electromagnetic wave is travelling in $$x$$-direction with electric field vector given by, $$\mathbf{E}_y=E_0 \sin (k

View Question The phenomenon involved in the reflection of radio-waves by ionosphere is similar to

View Question A point object is moving uniformly towards the pole of a concave mirror of focal length $$25 \mathrm{~cm}$$ along its ax

View Question A certain prism is found to produce a minimum deviation of $$38^{\circ}$$. It produce a deviation of $$44^{\circ}$$ when

View Question In the given circuit, the current through 2$$\Omega$$ resistor is

View Question Kirchhoff 's junction rule is a reflection of

View Question The variation of terminal potential difference $$V$$ with current flowing through a cell is as shown. The emf and intern

View Question In a potentiometer experiment, the balancing point with a cell is at a length $$240 \mathrm{~cm}$$. On shunting the cell

View Question The magnetic fields at the centre O in the given figure is

View Question An aluminium sphere is dipped into water. Which of the following is true?

View Question A thermodynamic system undergoes a cyclic process $$A B C$$ as shown in the diagram. The work done by the system per cyc

View Question One mole of $$\mathrm{O}_2$$ gas is heated at constant pressure starting at $$27^{\circ} \mathrm{C}$$. How much energy m

View Question A piston is performing S.H.M. in the vertical direction with a frequency of $$0.5 \mathrm{~Hz}$$. A block of $$10 \mathr

View Question The equation of a stationary wave is $$y=2 \sin \left(\frac{\pi x}{15}\right) \cos (48 \pi t)$$. The distance between a

View Question