List of top Questions asked in AP EAMCET

Evaluate the correctness of the given statements.
What are \( X \) and \( Y \) respectively in the following reaction sequence? \begin{center} \includegraphics[]{139.png} \end{center}
Which one of the following statements is NOT correct about the compounds of alkaline earth metals?
Which of the allotropic forms of carbon is aromatic in nature?
Hydrated sodium aluminum silicate is called:
The values of \( a \) and \( b \) in the solubility product equation for barium phosphate are:
Consider the following standard electrode potentials (\(E^\circ\) in volts) in aqueous solution: \includegraphics[]{135.png} Based on this data, which of the following statements is correct?
The number of extensive properties in the following list is: Enthalpy, density, volume, internal energy, temperature.
Three layers of liquid are flowing over a fixed solid surface as shown below. The correct order of velocity of liquid in these layers is: \includegraphics[]{127.png}
In which of the following pairs, both molecules possess dipole moment?
Identify the correct equation relating \( \Delta H \), \( \Delta U \), and \( \Delta T \) for 1 mole of an ideal gas (R = gas constant):
The correct order of covalent bond character of \( BCl_3, CCl_4, BeCl_2, LiCl \) is:
The correct order of atomic radii of N, F, Al, Si is:
In an \( npn \) transistor circuit, the collector current is \( 10 \) mA. If \( 95% \) of the electrons emitted reach the collector, then the base current is nearly:
The surface areas of two nuclei are in the ratio \( 9:25 \). The mass numbers of the nuclei are in the ratio:
Pure silicon at 300K has equal electron and hole concentration of \( 1.5 \times 10^{16} \) m\(^{-3}\). If the hole concentration increases to \( 3 \times 10^{22} \) m\(^{-3}\), then the electron concentration in the silicon is:
The difference in radii between fourth and third Bohr orbits of \( He^+ \) (in m) is:
If \( \lambda_0 \) and \( \lambda \) are respectively the threshold wavelength and wavelength of incident light, the velocity of photoelectrons ejected from the metal surface is:
A transmitter of power 10 kW emits radio waves of wavelength 500 m. The number of photons emitted per second by the transmitter is of the order of:
A charged particle moving along a straight-line path enters a uniform magnetic field of \( 4 \) mT at right angles to the direction of the magnetic field. If the specific charge of the charged particle is \( 8 \times 10^7 \) C/kg, the angular velocity of the particle in the magnetic field is:
A proton and an alpha particle moving with energies in the ratio \( 1:4 \) enter a uniform magnetic field of 37 T at right angles to the direction of the field. The ratio of the magnetic forces acting on the proton and the alpha particle is:
A resistor of resistance \( R \), inductor of inductive reactance \( 2R \) and a capacitor of capacitive reactance \( X_C \) are connected in series to an A.C. source. If the series LCR circuit is in resonance, then the power factor of the circuit and the value \( X_C \) are respectively:
At a place the horizontal component of earth’s magnetic field is \( 3 \times 10^{-5} \) T and the magnetic declination is \( 30^\circ \). A compass needle of magnetic moment \( 18 \) A\(m^2\) pointing towards geographic north at this place experiences a torque of:
In case of diffraction, if \( a \) is a slit width and \( \lambda \) is the wavelength of the incident light, then the required condition for diffraction to take place is:
The capacitance of an isolated sphere of radius \( r_1 \) is increased by 5 times when enclosed by an earthed concentric sphere of radius \( r_2 \). The ratio \( \frac{r_1}{r_2} \) is: