List of top Chemistry Questions asked in AP EAPCET

Which of the following elements exhibits variable oxidation states and forms colored compounds?
What is the pH of a 0.001 M HCl solution?
Which gas will diffuse the fastest under identical conditions of temperature and pressure?
Which of the following compounds contains both ionic and covalent bonds?
Which of the following has the highest ionization energy?
Which of the following oxides is amphoteric in nature?
Which transition metal does not form ‘MO’ type oxide? (M = transition metal)

A solid compound is formed by atoms of A (cations), B (cations), and O (anions). Atoms of O form an hcp lattice. Atoms of A occupy 25% of tetrahedral holes and atoms of B occupy 50% of octahedral holes. What is the molecular formula of the solid? 

At 27°C, 100 mL of 0.4 M HCl is mixed with 100 mL of 0.5 M NaOH. To the resultant solution, 800 mL of distilled water is added. What is the pH of the final solution?

Aqueous CuSO4 solution was electrolysed by passing 2 amp of current for 10 min. What is the weight (in g) of copper deposited at cathode? (Cu = 63 u; F = 96500 C mol-1)

The difference in radii between fourth and third Bohr orbits of \( He^+ \) (in m) is:
If \( \lambda_0 \) and \( \lambda \) are respectively the threshold wavelength and wavelength of incident light, the velocity of photoelectrons ejected from the metal surface is:
The correct order of atomic radii of N, F, Al, Si is:
The correct order of covalent bond character of \( BCl_3, CCl_4, BeCl_2, LiCl \) is:
In which of the following pairs, both molecules possess dipole moment?

At \( T(K) \), the \( P, V \) and \( u_{\text{rms}} \) of 1 mole of an ideal gas were measured. The following graph is obtained. What is its slope (\( m \))? (x-axis = \( PV \); y-axis = \( u_{\text{rms}}^2 \); \( M \) = Molar mass)

1 mole of an ideal gas were measured

Three layers of liquid are flowing over a fixed solid surface as shown below. The correct order of velocity of liquid in these layers is:

Three layers of liquid are flowing over a fixed solid surface
A flask contains 98 mg of H₂SO₄. If \( 3.01 \times 10^{20} \) molecules of H₂SO₄ are removed from the flask, the number of moles of H₂SO₄ remaining in the flask is (\( N = 6.02 \times 10^{23} \)):
Identify the correct equation relating \( \Delta H \), \( \Delta U \), and \( \Delta T \) for 1 mole of an ideal gas (R = gas constant):
The number of extensive properties in the following list is: Enthalpy, density, volume, internal energy, temperature.
The equilibrium constant for the dissociation of HI at 773 K is:
The values of \( a \) and \( b \) in the solubility product equation for barium phosphate are:
Hydrated sodium aluminum silicate is called:
Which one of the following statements is NOT correct about the compounds of alkaline earth metals?
Consider the following standard electrode potentials (\(E^\circ\) in volts) in aqueous solution: \includegraphics[]{135.png} Based on this data, which of the following statements is correct?