List of top Questions asked in AP EAPCET

Which compound is formed on catalytic hydrogenation of carbon monoxide at high pressure and temperature in presence of ZnO–Cr$_2$O$_3$ catalyst?

The rate constant of a reaction at 500 K and 700 K are 0.02 s$^{-1}$ and 0.2 s$^{-1}$ respectively. The activation energy of the reaction (in kJ mol$^{-1}$) is ($R = 8.3 \, \text{J K}^{-1} \text{mol}^{-1}$)

The correct order of coagulating power of the following ions to coagulate the positive sol is
I $[\text{Fe}(\text{CN})_6]^{4-}$, II $\text{Cl}^-$, III $\text{SO}_4^{2-}$

Assertion (A): 16th group elements have higher ionization enthalpy values than 15th group elements in the corresponding periods.
Reason (R): 15th group elements have half-filled stable electronic configuration.

Assertion (A): Fluorine has smaller negative electron gain enthalpy than chlorine.
Reason (R): The electron-electron repulsion is higher in chlorine than in fluorine.

Identify the isoelectronic pair of ions from the following

The gaseous mixture used for welding of metals is

An element crystallizing in fcc lattice has the density of 8.92 g cm$^{-3}$ and edge length of 3.61$\times$10$^{-8}$ cm. What is the atomic weight of the element? (N=6.022$\times$10$^{23}$ mol$^{-1}$)

Which of the following is correct for fcc lattice?

0.05 mole of a non-volatile solute is dissolved in 500 g of water. What is the depression in freezing point of the resultant solution? ($K_f(\text{H}_2\text{O}) = 1.86 \, \text{K kg mol}^{-1}$)

Which of the following form an ideal solution?

96.5 amperes current is passed through the molten AlCl$_3$ for 100 seconds. The mass of aluminum deposited at the cathode is (Atomic weight of Al = 27 u)

The relative basic strength of the compounds is correctly shown in the option:

Calcium carbide reacts with heavy water (D$_2$O) to form a compound $ X $ and Ca(OD)$_2$. What is the hybridization of carbon atom(s) in $ X $?

Identify the correct statements:

The two major constituents of Portland cement are:

Identify P and Q in the following reaction: $$ \text{P} + \text{Q} \rightarrow [\text{B(OH)}_4]^– + \text{H}_3\text{O}^+ $$

Identify the species which does **not** exist:

The set of species having only fractional bond order values is:

Identify the correct variation of pressure and volume of a real gas (A) and an ideal gas (B) at constant temperature.
($ y = P, x = V $)

What are the oxidation numbers of S atoms in $ S_4O_6^{2-} $?