List of top Chemistry Questions asked in AP EAPCET

For a first-order reaction, the rate constant \( k \) is \( 1.386 \times 10^{-3} \, \text{s}^{-1} \). What is the half-life \( t_{1/2} \) of the reaction? (Use \( \ln 2 = 0.693 \))
In a redox titration, 25 mL of 0.1 M KMnO$_4$ is required to completely react with oxalic acid in acidic medium. The volume of 0.2 M oxalic acid used is:
(Balanced reaction: \( 2\text{MnO}_4^- + 5\text{C}_2\text{O}_4^{2-} + 16\text{H}^+ \rightarrow 2\text{Mn}^{2+} + 10\text{CO}_2 + 8\text{H}_2\text{O} \))
Calculate the volume occupied by 4.4 g of CO$_2$ gas at 27°C and 1 atm pressure. (\( R = 0.0821 \, \text{L-atm/mol-K} \), Molar mass of CO$_2$ = 44 g/mol)
What is the molarity of a solution prepared by dissolving 4 g of NaOH in 250 mL of solution? (Molar mass of NaOH = 40 g/mol)

The enthalpy change for the reaction
 \(2H_2(g) + O_2(g) → 2H_2O(l)\)
is -572 kJ/mol. What is the enthalpy change for the formation of 1 mole of \(H_2O(l)\)}?

Which of the following is the IUPAC name for \(CH_3CH_2CH_2OH\)?

What is the hybridization of the central atom in \(NH_3\)?

The hybridisation of atom $'X'$ with atomic number $27$ in $\left[X F _{6}\right]^{3-}$ is
Iii which of the following, the solubility of $AgCl$ will be minimum?