List of top Questions asked in AP EAPCET

The element that has completely filled d-orbitals in its atomic and +1 oxidation state is:

In complex CrCl\(_3\cdot 6H_2O\), the correct primary valency, secondary valency, and coordination number are respectively x, y, and z. What are x, y, and z?

Rhamnose, a carbohydrate has the formula:

Which among the following are peptide based hormones?
(i) Estrogen
(ii) Insulin
(iii) Endorphin
(iv) Androgen

The common oxidation states of elements of 15th group elements are:

The bond length and bond angle of S$_8$ ring in rhombic sulphur are respectively:

In a first order reaction, the reactant decomposes 25% of its initial concentration in 40 minutes. What is the value of rate constant of the reaction? (Given: $\log 3 = 0.4771$, $\log 4 = 0.6021$)

Assertion (A): Colloidal particles pass through ordinary filter paper.
Reason (R): Ultra filtration is a slow process.
Choose the correct option.

Which one of the following is not an adsorbent?

Match List I with List II:

The ratio of edge lengths (fcc lattice) of Cu and Ag is 9:10. If $M_{Ag} = 108 \, g\,mol^{-1}$ and $M_{Cu} = 63.5 \, g\,mol^{-1}$, find the ratio of their densities.

Which of the following statement is not correct?

At T (K), the molarity of 34% (w/w) NH$_3$ solution (density 0.9 g mL$^{-1}$) is:

The cell potential $E_{cell}$ for the following cell is:
\[ A(s) | A^+(aq, 0.1M) || B^{2+}(aq, 0.01M) | B(s) \] Given: \[ E^\circ_{A^+/A} = 1V,\quad E^\circ_{B^{2+}/B} = 3V \]

Identify the major product ‘Q’ in the following reaction:

Assertion (A): Carbon can form $p\pi - p\pi$ bonds with itself and with other small sized and highly electronegative atoms.
Reason (R): Other heavier elements of group 14 can also form $p\pi - p\pi$ bonds.
Choose the correct option:

The number of s, p, and d-electrons present in gallium is respectively:

The hydrated metal ion that has the largest size is:

Match the following metals with the colour of flame they produce:

Which of the following statements is correct about isotopes of hydrogen?

The number of $\pi$ and $\sigma$ bonds present in benzonitrile respectively are:

At 300 K and constant pressure, the following data is obtained for the reaction: \[ 4M(s) + 3O_2(g) \rightarrow 2M_2O_3(s) \] Given: \[ \Delta H^\circ = -1548 \, \text{kJ mol}^{-1}, \quad \Delta S_{\text{sys}} = -550 \, \text{J K}^{-1}\text{mol}^{-1} \] What is the value of $\Delta S_{\text{surr}}$ in J K$^{-1}$ mol$^{-1}$?

For the reaction $CaCO_3(s) \rightleftharpoons CaO(s) + CO_2(g)$, complete conversion of $CaCO_3$ can be achieved by:

Statement (A): Addition of an inert gas at equilibrium at constant volume does not affect equilibrium.
Statement (B): Addition of a catalyst does not affect the position of equilibrium.
Choose the correct option.

The $\Delta_{r}G$ of a reaction $A + B \rightleftharpoons C + D$ at fixed concentration of C is $-183.14 \, \text{kJ/mol}$. It is plotted as a function of temperature. Calculate the $G$ of the reaction (in kJ/mol).