List of top Questions asked in AP EAPCET

The conjugate base of NH$_4^+$ is
In long form of periodic table, the d-block element which forms interstitial hydride is
The bond order values of anions of sodium peroxide and potassium super oxide are respectively
Observe the following statements:
Statement A: In general, the ionization potential value decreases on moving down in the group.
Statement B: The 1\textsuperscript{st} ionization potential of sodium is greater than that of potassium.
Correct answer is
The percentage of abundance of three elements X, Y and Z in the earth’s crust are about 27.7, 8.3 and 46.0 by mass respectively. X, Y and Z are
The two stable isotopes of carbon present in the naturally occurring carbon are
Which of the following compounds do not have sp$^3$ carbon atom(s)?
I. Acetone\quad II. Acetic acid\quad III. Buta-1,3-diene\quad IV. Propyne\quad V. Naphthalene
The major product ‘B’ of the following reaction sequence is
major product ‘B’ of the following reaction sequence is
Among the ions O$^{2-}$, Na$^+$, F$^-$, N$^{3-}$, Mg$^{2+}$ the ions with smallest and largest radii are respectively
The ratio of rate of diffusion of SO$_2$ to CH$_4$ is
Which of the following does not show disproportionation reaction?
Which of the following conditions are not suitable for a spontaneous reaction?
For the formation of NH$_3$(g) from its constituent elements, which of the relation between the reaction quotient (Q) and equilibrium constant (K$_c$) is correct for the backward reaction?
Consider the following statements
Statement (A): The resistance of an ideal diode in forward biased condition is zero.
Statement (B): In a half wave rectifier, the load current flows only for every half cycle of the input signals.
Statement (C): In the breakdown region, a zener diode behaves as a constant voltage source.
The frequency band for uplink satellite communication in the following is
The ratio of radii of second orbit of hydrogen atom to fourth orbit of He$^+$ ion is
The velocity of the electron in Bohr’s first orbit is \( x \times 10^6 \, \text{ms}^{-1} \). The deBroglie wavelength associated with it (in nm) is (Given: \( m_e = 9 \times 10^{-31} \, \text{kg}, \, h = 6.6 \times 10^{-34} \, \text{Js} \))
The molecule which has more number of lone pair of electrons than the bond pair of electrons in its central atom is
Arrange the following in the correct order of their bond orders: N$_2$, O$_2$, O$_2^+$, O$_2^-$
The element with the electronic configuration [Kr]4d$^{10}$5s$^0$ is
The average number of photons emitted per second by a laser of power \(6.6 \times 10^{-3}\) W producing a light of wavelength 600 nm is (Planck’s constant, \(h = 6.6 \times 10^{-34}\) J·s)
A light from Paschen series of hydrogen atom is able to eject photoelectrons from a metal. Then the work function of the metal is
The average number of photons emitted per second by a laser of power \(6.6 \times 10^{-3}\) W producing a light of wavelength 600 nm is (Planck’s constant, \(h = 6.6 \times 10^{-34}\) J·s)
A light from Paschen series of hydrogen atom is able to eject photoelectrons from a metal. Then the work function of the metal is
The average number of photons emitted per second by a laser of power \(6.6 \times 10^{-3}\) W producing a light of wavelength 600 nm is (Planck’s constant, \(h = 6.6 \times 10^{-34}\) J·s)