List of top Questions asked in AP EAMCET

The equation that represents ‘coal gasification’ is:
At \( T(K) \), the solubility product of \( AX \) is \( 10^{-10} \). What is the molar solubility of \( AX \) in 0.1 M HX solution?

Kc for the reaction \[ A(g) \rightleftharpoons T(K) + B(g) \] is 39.0. In a closed one-litre flask, one mole of \( A(g) \) was heated to \( T(K) \). What are the concentrations of \( A(g) \) and \( B(g) \) (in mol L\(^{-1}\)) respectively at equilibrium?

Observe the following reactions: 
\( AB(g) + 25 H_2O(l) \rightarrow AB(H_2S{O_4}) \quad \Delta H = x \, {kJ/mol}^{-1} \) 
\( AB(g) + 50 H_2O(l) \rightarrow AB(H_2SO_4) \quad \Delta H = y \, {kJ/mol}^{-1} \) 
The enthalpy of dilution, \( \Delta H_{dil} \) in kJ/mol\(^{-1}\), is:

Identify the correct statements from the following:
0.1 mole of potassium permanganate was heated at 300°C. What is the weight (in g) of the residue?

Two statements are given below: 
Statement I: Viscosity of liquid decreases with increase in temperature. 
Statement II: The units of viscosity coefficient are Pascal sec. The correct answer is:

The RMS velocity (\(v_{{rms}}\)) of one mole of an ideal gas was measured at different temperatures and the following graph is obtained. What is the slope (m) of the straight line? 

Observe the following sets: 

Which of the above sets are correctly matched?

Which of the following orders are correct regarding their covalent character?
(i) \( \text{KF} < \text{KI} \)
(ii) \( \text{LiF} < \text{KF} \)
(iii) \( \text{SnCl}_2 < \text{SnCl}_4 \)
(iv) \( \text{NaCl} < \text{CuCl} \)

The correct order of atomic radii of given elements is

The number of \( d \) electrons in Fe is equal to which of the following?
(i) Total number of \( s \)-electrons of Mg
(ii) Total number of \( p \)-electrons of Cl 
(iii) Total number of \( p \)-electrons of Ne

The energy of the third orbit of \( {Li}^{2+} \) ion (in J) is:
An information signal of frequency 10 kHz is modulated with a carrier wave of frequency 3.61 MHz. The upper side and lower side frequencies are:
In a common emitter amplifier, a.c. current gain is 40 and input resistance is 1 kΩ. The load resistance is given as 10 kΩ. Then the voltage gain is:
The semiconductor used for fabrication of visible LEDs must at least have a band gap of:
If the energy released per fission of a \(^{235}U\) nucleus is 200 MeV, the energy released in the fission of 0.1 kg of \(^{235}U\) in kilowatt-hour is:
The ground state energy of hydrogen atom is -13.6 eV. The potential energy of the electron in this state is:
A blue lamp emits light of mean wavelength 4500\({Å}\). The lamp is rated at 150 W and 8% efficiency. Then the number of photons are emitted by the lamp per second.
Which of the following produces electromagnetic waves?
Two figures are shown as Fig. A and Fig. B. The time constant of Fig. A is \( \tau_A \), and time constant of Fig. B is \( \tau_B \). Then:
X and Y are two circuits having coefficient of mutual inductance 3 mH and resistances 10 \( \Omega \) and 4 \( \Omega \) respectively. To have induced current 60 \( \times 10^{-4} \, {A} \) in circuit Y, the amount of current to be changed in circuit X in 0.02 sec is:
If the vertical component of the earth's magnetic field is 0.45 G at a location, and angle of dip is \( 60^\circ \), then magnetic field of earth at that location is:
A rectangular loop of sides 25 cm and 10 cm carrying a current of 10 A is placed with its longer side parallel to a long straight conductor 10 cm apart carrying current 25 A. The net force on the loop is:
When an electron placed in a uniform magnetic field is accelerated from rest through a potential difference \( V_1 \), it experiences a force \( F \). If the potential difference is changed to \( V_2 \), the force experienced by the electron in the same magnetic field is \( 2F \), then the ratio of potential differences \( \frac{V_2}{V_1} \) is: