List of top Questions asked in TS EAMCET

In graphite the C - C bond length with in the layer is X pm and the distance between two adjacent layers is Y pm. X and Y respectively are

Consider the reactions (not balanced) \[ BF_3 + NaH \xrightarrow{450K} A + NaF \] \[ LiH + A \longrightarrow Li^{+}[X]^{-} \] The hybridisation involved in $[X]^{-}$ is

$\Delta H$ and $\Delta S$ for the reaction, $2A+B \rightarrow C$ at 298 K are $400~kJ~mol^{-1}$ and $2~kJ~K^{-1}mol^{-1}$ respectively. At or above $T(K)$, the reaction becomes spontaneous. What is $T(K)$?

Match the following

The correct answer is

At $T(K)$ consider the following equilibrium reaction \[ HgO(s) \rightleftharpoons Hg(g)+\frac{1}{2}O_2(g) \] The correct relation between $K_p$ and $P_{Total}(P_T)$ is}

The similarities between beryllium and aluminium are
• [I.] The chlorides of both have Cl bridged structure in vapour phase
• [II.] Both have strong tendency to form complexes
• [III.] Maximum covalency of both is 6 The correct answer is

At $27^{\circ}C,$ the ratio of RMS velocity and most probable velocity of $SO_2$ is}

The velocity of the photoelectron (\(in~ms^{-1}\)) emitted when a smooth surface of a metal is made to strike with a photon of wavelength \(4\times10^{-7}m\) (\(W_{0}\) of metal \(=2.13~eV\); \(1eV=1.6\times10^{-19}J\); \(h=6.6\times10^{-34}Js\); \(m_{e}=9.1\times10^{-31}kg\))

Identify the correct statements from the following
I. Si and Ge have same electronegativity value
II. The electronic configuration of the element Ds is \([Rn]5f^{14}6d^{10}7s^{2}7p^{3}\)
III. The p-block elements are classified into six groups

Given below are two statements
Statement-I: In the conversion of \(O_2^+\) to \(O_2^{2+}\) bond length increases
Statement-II: In the conversion of \(O_2^+\) to \(O_2^{2+}\) magnetic property changes

In which of the following, elements are arranged in the correct order of their first electron gain enthalpy values?

The set of molecules with different geometry and same type of hybridization is

In terms of Planck's constant (h), permittivity of free space \((\epsilon_{0})\), mass of the electron (m) and charge of the electron (e), the de Broglie wavelength associated with the electron in the second orbit of hydrogen atom is

An AND gate, an OR and a NAND gate are connected as shown in the figure. If the inputs are \(A=0\), \(B=1\) and \(C=0\), then the outputs \(y_{1}\), \(y_{2}\), \(y_{3}\) are respectively

When the input voltage given to the combination of two common emitter amplifiers connected in series is \(20\ mV\), then the output voltage is \(30\ V\). If the voltage gain of one amplifier is \(25\), then the voltage gain of the other amplifier is

If the masses of proton and neutron are \(m_{p}\) and \(m_{n}\) respectively, the experimental masses of \({}_{2}He^{4}\) and \({}_{8}O^{16}\) nuclei are \(M_{1}\) and \(M_{2}\) respectively, then

For an amplitude modulated wave, if the maximum amplitude is \(400%\) more than its minimum amplitude, then the modulation index is

If the activities of a radioactive substance at times \(t=0\) and \(t=3T\) are A and B respectively, then the activity of the substance at a time \(t=9T\) is

Two long straight parallel wires P and Q carrying currents of 10 A and 20 A respectively in the same direction are placed in air with a separation of 10 cm between them. Another long straight wire R carrying a current of 5 A in the opposite direction is placed between the wires P and Q and parallel to them at a distance of 5 cm from wire Q. Then the magnitude of the net force acting on wire R per unit length is

In an ac circuit, if the rms value of current is 2 A and the wattless current is \(\sqrt{3}\) A, then the power factor of the circuit is

The mean radius of a Rowland ring is 12 cm and it has 3000 turns of wire wound on its ferromagnetic core of relative permeability 500. If the magnetic field inside the core is 5 T, then the magnetizing current is

The amplitude of the magnetic field of a plane electromagnetic wave travelling along positive x-axis in vacuum is 6 mT. A particle of charge 5 \(\mu\)C is travelling with a velocity of \(6\times10^{5}ms^{-1}\) along the positive y-axis. If the magnetic field is oriented along positive z-axis, then the maximum force exerted on the particle due to electric field of the wave is

Photons of energy 4.2 eV are incident on a photosensitive material of work function 1.7 eV. If the emitted photoelectrons enter normally into a uniform magnetic field of \(\sqrt{2}\times10^{-4}T\), then the largest radius of the circular path described by the photoelectrons is nearly

If the energy stored in an inductor is 18 mJ when a current of 3 A is passed through it, then the magnetic flux linked with the inductor is

At a distance of 20 cm from the centre of a charged conducting sphere of radius 10 cm, the electric field due to the sphere is $9000NC^{-1}$ If an electric charge of 3 µC is placed at a distance of 30 cm from the centre of the sphere, then the electrostatic force acting on the charge is}