List of top Chemistry Questions asked in AP EAPCET

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?

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 covalent bond character of \( BCl_3, CCl_4, BeCl_2, LiCl \) is:

In which of the following pairs, both molecules possess dipole moment?

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 (\( N = 6.02 \times 10^{23} \)):

The number of extensive properties in the following list is: Enthalpy, density, volume, internal energy, temperature.

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?

What is the boiling point (in K) of the urea solution from the given graph?

Evaluate the correctness of the given statements.
I. Negative deviation occurs when A-B interactions are stronger than A-A and B-B.
II. Reverse osmosis requires applied pressure greater than osmotic pressure.

Match List - I with List -

The flux used in the preparation of wrought iron from cast iron in reverberatory furnace is:

Which of the following occurs with KMnO\(_4\) in neutral medium?

The correctly matched set of the following is:

Identify the correctly matched set from the following:

Given below are two statements:
I. Cytosine and guanine are formed in equal quantities in DNA hydrolysis.
II. Adenine and uracil are formed in equal quantities in RNA hydrolysis. The correct answer is:

Identify the correctly matched pair from the following:

What are Y and Z respectively in the following reaction sequence?

An alcohol \( X \) (\( C_4H_{10}O \)) does not give turbidity with conc. HCl and ZnCl\(_2\) at room temperature. \( X \) on reaction with reagent \( Y \) gives \( Z \). What are \( X \), \( Y \), and \( Z \) respectively?

Which of the following sets of reagents convert toluene to benzaldehyde?

What are X and Y respectively in the following reactions?

Identify the pair of elements in which the number of electrons in the (n-1) shell is the same:

Observe the following structure:

The formal charges on the atoms 1, 2, 3 respectively are:

Given below are two statements: Statement-I: In the decomposition of potassium chlorate, Cl is reduced.
Statement-II: Reaction of Na with \( O_2 \) to form \( Na_2O \) is a redox reaction.

‘X’ on hydrolysis gives two products. One of them is solid. What is ‘X’?

Match the following: