List of top Questions asked in AP EAPCET

Arrange the hydrides NH$_3$, HF, H$_2$O, HCl in the increasing order of their boiling points
The P − P bond angle in P4 and S − S bond angle in cyclo S8 molecule are respectively
The number of bond pairs of electrons and total number of lone pairs of electrons in XeOF$_4$ are respectively
If the bond order in \( C_2 \) is \( x \), then the bond order in \( B_2 \) and \( O_2 \), respectively are:
Among the following the correct statements are
I. Germanium exists only in traces
II. PbF4 molecule is tetrahedral in shape
III. GeX2 is more stable than GeX4

Match the following molecules with their dipole moments:

List IList II
\( \mathrm{H_2O} \)I. 0
\( \mathrm{BF_3} \)II. 0.23
\( \mathrm{NH_3} \)III. 1.47
\( \mathrm{NF_3} \)IV. 1.85

Which of the following statements are correct?
LiF is less soluble in water
NaCl is less ionic than CsCl
Formation of alkali metal halide is an endothermic reaction

In D-glucose and D-fructose, which OH participates in hemiatal/hemiketal formation?
In OF\(_2\), the number of bond pairs and lone pairs of electrons are respectively:
The relation between focal length (f) and radius of curvature (R) of a spherical mirror is
Light enters from air into a given medium at an angle of \( 45^\circ \) with interface of the air-medium surface. After refraction, the light ray is deviated through an angle of \( 15^\circ \) from its original direction. The refractive index of the medium is
The refractive index of ionosphere is
When a light ray incidents on the surface of a medium, the reflected light is completely polarized. Then the angle between reflected and refracted rays is:
Two coherent light sources having intensity in the ratio 2:1 produce an interference pattern. Then the value of \( \frac{I_{\text{max}} - I_{\text{min}}}{I_{\text{max}} + I_{\text{min}}} \) will be:
A spherical portion A of radius \( R \) is removed from a solid sphere B of radius \( 2R \), both centered. The ratio of moments of inertia of remaining part to original is:
A disc of moment of inertia \( 3.5 \, \text{kg m}^2 \) is rotating at \( 30 \, \text{rad/s} \). Torque to stop it in 5 seconds is:
The translational kinetic energy of a circular disc of mass 1.5 kg rolling on a horizontal surface without slipping is 24 J. The total kinetic energy of the disc is:
"The uniform motion is possible when no frictional forces oppose" is the concept of
A body of mass 1 kg is moving with a velocity 10 m/s due to a constant force on a horizontal rough surface having coefficient of kinetic friction 0.4. If the constant force is removed, the body comes to rest in a time:
The following is not the method of reducing friction:
The equation of a particle executing simple harmonic motion is \( x = a \sin(\omega t) + b \cos(\omega t) \). The maximum velocity of the particle is:
The equation of motion of a particle executing simple harmonic motion is given by $x = 3 \sin(6t+\frac{\pi}{6})$, where x is in metres and t is in seconds. The ratio of the potential and kinetic energies of the particle at time $t=0$ is
Two particles execute simple harmonic motion along the same straight line with same amplitude and same frequency. The two particles pass one another when moving in opposite directions each time at a distan of $\frac{1{\sqrt{2}}$ times the amplitude from their common mean position. The phase differen between the two particles is
The acceleration of a particle executing simple harmonic motion at a distance of 10 cm from the mean position is 0.4 ms\(^{-2}\). If the amplitude of the particle is 30 cm, the maximum acceleration of the particle is

The electric potential at a point is given by $ V = \left(-5x + 3y + \sqrt{15z} \right) \, \text{volt}$.
The magnitude of the electric field at that point is