List of top Questions asked in AP EAPCET- 2022

The major product of the following reaction is

Identify the ortho and para directing groups towards aromatic electrophilic substitution reactions from the following list.
Identify the correct statements about the anomalous behavior of Boron.
I. Boron trihalides can form dimeric structures.
II. Boron shows \(+1\) as stable oxidation state.
III. Maximum covalency of Boron is four.
IV. Boron does not form \(BF_6^{6-}\) ion.
Among \(P_4,\;S_8\) and \(N_2\), the elements which undergo disproportionation when heated with \(NaOH\) solution are
The pair of elements that form both oxides and nitrides, when burnt in air are
The hybridizations of carbon in graphite, diamond and \(C_{60}\) are respectively
The pH of \(0.01\;N\) lime water is
The empirical formula of Calgon is
Which of the following expression is correct
Observe the following properties:
Volume, enthalpy, density, temperature, heat capacity, pressure, internal energy The number of extensive properties in the above list is
What is the oxidation state of \(S\) in the sulphur containing product of the following reaction?
\[ SO_3^{2-}(aq) + Br_2(l) + H_2O \longrightarrow \]
Match the following:
In which of the following, elements are arranged in the correct order of their electron gain enthalpies?
In second period of the long form of the periodic table an element \(X\) has second lowest first ionization enthalpy and element \(Y\) has second highest first ionization enthalpy values. What are \(X\) and \(Y\)?
From the following plots, find the correct option.
How many grams of \(Mg\) is required to completely reduce \(100\;ml,\;0.1\;M\;NO_3^-\) solution using the following reaction?
\[ NO_3^- + Mg \longrightarrow Mg^{2+} + NH_3 \]
The set of molecules in which the central atom is not obeying the octet rule is
The formal charges of atoms (1), (2) and (3) in the ion \[ \left[\overset{(1)}{O}=\overset{(2)}{N}=\overset{(3)}{O}\right]^+ \] is
A hydrogen atom at the ground level absorbs a photon and is excited to \(n=4\) level. The potential energy of the electron in the excited state is
Consider the statements in a semiconductor:
(A) There are no free electrons at \(0\;K\).
(B) There are no free electrons at any temperature.
(C) The number of free electrons increases with temperature.
(D) The number of free electrons is less than that in a conductor.
The radius of an atomic nucleus of mass number \(64\) is \(4.8\;fermi\). Then the mass number of another atomic nucleus of radius \(6\;fermi\) is
The maximum number of electrons present in an orbital with \(n=4,\; l=3\) is
Which quantum number provides information about the shape of an orbital?
A carrier wave is used to transmit a message signal. If the peak voltage of modulating signal and carrier signal are increased by \(1\%\) and \(3\%\) respectively, the modulation index is changed by
A light of intensity \(12\;Wm^{-2}\) incidents on a black surface of area \(4\;cm^2\). The radiation pressure on the surface is