List of top Chemistry Questions asked in AP EAPCET

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?

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:

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 ...............

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

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

Sugar present in DNA is:

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:

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

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\(_3\)

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

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

Freundlich adsorption isotherm fails at which of the following conditions?

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):

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 decreasing order of acidic nature of the following compounds is:

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:

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

Identify the molecules which have sp-hybridized carbon(s) from the list given under:
I. Ethane nitrile
II. Buta-1,3-diene
III. Propa-1,2-diene
IV. Ethyne
V. Benzene

Match the following:

Hydration enthalpy of which of the following ions is highest?

Identify the correct statements from the following:
(a) Alkali metals are strong reducing agents.
(b) KO\(_2\) is a diamagnetic oxide.
(c) Lithium chloride exists as LiCl·2H\(_2\)O.