List of top Questions asked in AP EAPCET- 2022

For the parabola represented in the parametric form \[ x=t^2+t+1 \] \[ y=t^2-t+1, \] the length of latus rectum is:

The coefficient of volume expansion of a material is \(5\times10^{-4}\left(^{\circ}\mathrm{C}\right)^{-1}\). The fractional change in its density for a \(40^\circ\mathrm{C}\) rise in temperature is nearly:

Which of the following reactions takes place when tertiary butanol is passed over heated copper at 573 K?

Hydrolysis of the minor product formed from the reaction of 1-Bromo propane and ethanolic KCN gives:

The rate of reaction of t-butyl bromide and NaOH in water depends on the concentration of:

With reference to the carbonyl group, which statement(s) is/are correct?

Arrange the following oxides in correct order of their acidic character:
\[ I: N_2O_3, \quad II: P_2O_3, \quad III: N_2O_5, \quad IV: As_2O_3 \]

Which of the following represents correct order of oxidizing power of halogens with water?

Which of the following elements are not regarded as transition elements?

The hybridization of metals involved in the following complexes, respectively are:
\[ [Mn(CN)_6]^{3-}, \quad [CoF_6]^{3-} \]

Hydrolysis of nucleic acid gives nitrogenous base, sugar and ...............

Sugar present in DNA is:

What is the concentration (in mol L\(^{-1}\)) of the product after 20 s in the following reaction:
\[ \text{A} \rightarrow 3 \text{B}, \quad \text{rate} = k[\text{A}]^0 \]

Freundlich adsorption isotherm fails at which of the following conditions?

3.1 g of a compound, “X” (molar mass = 62 g mol\(^{-1}\)) is dissolved in 19.5 g of another compound, Y (molar mass = 78 g mol\(^{-1}\)). The ratio of mole fractions of X and Y in the solution is:

The standard Gibbs energy (\(\Delta G^\circ\)) for the following reaction is:
\[ A(s) + B^{2+} (aq) \rightleftharpoons A^{2+} (aq) + B(s), \quad K_c = 10^{12} \text{ at 25°C} \]

The number of positively and negatively charged sols respectively in the following are:
TiO\(_2\), blood, CdS, Cu, Ag, Clay, SiO\(_2\), Fe\(_2\)O\(_3\)

For which of the following liquid mixtures \(\Delta_\text{mix} H = 0\) and \(\Delta_\text{mix} V = 0\)?

Bond enthalpy of Ge-Ge bond is 260 kJ mol\(^{-1}\). The bond enthalpies of Si-Si and Sn-Sn bonds in kJ mol\(^{-1}\) are respectively:

Ag crystallizes in fcc lattice. What is the total number of tetrahedral voids present in \(540 \, \text{g}\) of Ag metal? \((N_A=\text{Avogadro number}; \text{Ag atomic weight}=108 \, \text{g mol}^{-1})\)

The density of Na is 0.613 g cm\(^{-3}\). If the edge length of the unit cell of Na is 5 Å, the effective number of atoms of Na per unit cell is (Atomic weight of Na = 23 u):

The decreasing order of acidic nature of the following compounds is:

Aluminium chloride in acidified aqueous solution gives a complex ion “X”. The hybridization of the central atom in X is: