List of top Questions asked in AP EAPCET

Let \[ A=\begin{bmatrix} 1 & 2\\ -2 & 1 \end{bmatrix} \] and \[ B^{-1}=\begin{bmatrix} 1 & 1\\ 0 & 2 \end{bmatrix} \] If \[ (AB^{-1})^{-1}=\begin{bmatrix} a & b\\ c & d \end{bmatrix}, \] then \(2b+5c+10d=\)

If the system of simultaneous linear equations \(x+y-z=6\), \(3x-y+z=2\) and \(x+ky+z=-8\) has a unique solution \(x=2\), \(y=\beta\), \(z=\gamma\), then the value of \(k\) satisfies the following quadratic equation:

The domain of the real valued function \[ f(x)=\frac{\sqrt{\log_{0.5}(x-3)}}{\sqrt{x-1}} \] is

If a function \(f\) satisfies \(f(x+1)+f(x-1)=\sqrt{2}f(x)\), then \(f(x+2)+f(x-2)=\)

Identify the product formed in the following reaction sequence.

Identify the major product of the following reaction.

Which of the following is not true about the denaturation of protein?

Identify the major product formed when propene is treated with hydrogen chloride followed by Swarts reaction.

Statement-I : Despite having aldehyde group, glucose does not give Schiff test.
Statement-II : Glucose exists in \(\alpha\) and \(\beta\) crystalline forms.

Match the following:

When ethanol is treated with sulphuric acid at \(413\ K\), the reaction involved in it is:

Identify the product \(P\) from the following sequence of reactions.

The correct order about the number of unpaired electrons present in the following complexes is \[ [Fe(CN)_6]^{4-}\quad (I) \] \[ [Fe(H_2O)_6]^{2+}\quad (II) \] \[ [Co(H_2O)_6]^{2+}\quad (III) \]

Assertion (A): The aggregate of carboxylate ions of fatty acids forms a spherical shape.
Reason (R): Soap helps in emulsification and washing away of oils.

Which of the following \(f\)-block element exhibits the highest oxidation state?

In the following reaction for the preparation of gold sol, \(a,\ b,\ c,\ x,\ y,\) and \(z\) are \[ aAuCl_3+bHCHO+cH_2O\rightarrow xAu(sol)+yHCO_2H+zHCl \]

Which of the following compound has reducing character?

Assertion (A): All noble gases are monatomic.
Reason (R): All noble gases have very low melting and boiling points.

At \(298\ K\), vapour pressures of two pure liquids A and B are \(200\) and \(400\ \text{mm Hg}\) respectively. If mole fractions of A and B in solution are \(0.7\) and \(0.3\) respectively, what is the mole fraction of B in vapour phase?

The freezing point depression of a solution containing \(0.6\ \text{g}\) of urea \((\text{molar mass}=60\ \text{g mol}^{-1})\) in \(100\ \text{g}\) of benzene is in K \((K_f=4.0\ \text{K kg mol}^{-1})\):

In a first order reaction, the concentration of the reactant is reduced from \(0.6\ \text{mol L}^{-1}\) to \(0.2\ \text{mol L}^{-1}\) in \(5\) min. What is the rate constant of the reaction? \((\log 3=0.4771)\)

Which of the following molecular formula and type of defect are correct for the following statement? ``In FeO crystal, some \(Fe^{2+}\) ions are missing and the loss of positive charge is made up by the presence of \(Fe^{3+}\) ions.''

The standard Gibbs energy change for Daniell cell reaction is \[ Zn(s)+Cu^{2+}(aq)\rightarrow Zn^{2+}(aq)+Cu(s) \] \[ E^\circ_{\text{cell}}=1.1\ V \] Find the standard Gibbs energy change \((\Delta G^\circ)\).

A cubic lattice has atoms of A at the body centre, atoms of B at the corners of the cube and atoms C at all the face centres. What is its formula?

The maximum covalency and highest oxidation state possible of an element with \(Z=13\) are respectively: