List of top Chemistry Questions asked in AP EAPCET

One mole H\textsubscript{2O(g) and one mole CO(g) are taken in 1L flask and heated to 725K. At equilibrium, 40\% (by mass) of water reacted with CO(g) as follows:} \[ \text{H}_2\text{O(g)} + \text{CO(g)} \rightleftharpoons \text{H}_2\text{(g)} + \text{CO}_2\text{(g)} \] Its $K_c$ value is
At 300 K, the following graph is obtained for one mole of an ideal gas. If its pressure is 10 atm, then its volume (in L) will be
If the enthalpy and entropy change for a reaction at 298 K are -145 kJ mol$^{-1}$ and -650 J K$^{-1}$ mol$^{-1}$ respectively, which one of the following statements is correct?
11.0 L of an ideal gas at constant external pressure of 5 atm is compressed isothermally to a final volume of one liter. The heat absorbed and work done respectively, during this compression (in L atm) are
Identify the region of spectral lines of electromagnetic spectrum, when electron transition takes place from higher energy levels to n = 3, 4, 5 in atomic spectrum of hydrogen.
The correct order of electron gain enthalpy of N, O, Cl, Al is.
The correct order of bond enthalpy of given molecules is
The number of bond pairs of electrons and total number of lone pairs of electrons in XeOF$_4$ are respectively
At T (K), an ideal gas (Z) present in V L flask exerted a pressure of 16.4 atm. Its concentration is 1 mol L$^{-1}$. What is the value of T in K?
Which of the following statements are correct?
Maximum number of electrons theoretically possible for an orbit with principal quantum number n = 6 in an atom is.
In the given reactions, 'X' and 'Y' respectively are: \[ \ce{C6H5CH2NH2 ⇔[X] C6H5CONH2 ⇒[Y] C6H5NH2} \]
Identify the major product of the following reaction:
3-bromo benzoic acid
What is the major product formed when p-cresol is heated with zinc dust?
What are 'X' and 'Y' respectively in the following reaction sequence? \[ \ce{C6H5CH3→[X] C6H5CO2H →[Y] C6H5CH2OH} \]
Addison’s disease is characterized by A. Hyperglycemia B. Weakness C. Increased susceptibility to stress D. Hypertension
Least reactive alkyl chloride in an \( S_N2 \) reaction is:
Which of the following alkyl halides is most reactive towards substitution by \( S_N1 \) mechanism?
Observe the following complexes \[ [\text{Mn(CN)}_6]^{3-},\quad [\text{Fe(CN)}_6]^{3-},\quad [\text{Co(C}_2\text{O}_4)_3]^{3-},\quad [\text{MnCl}_6]^{3-},\quad [\text{Fe(CN)}_6]^{4-},\quad [\text{CoF}_6]^{3-} \] From the above, the number of inner orbital complexes with paramagnetic nature is:
Which of the following are not in accordance with the property mentioned against them? I. \( F_2>Cl_2>Br_2>I_2 \): Oxidising power
II.\( MI>MBr>MCl>MF\): Ionic character of metal halide
III. \( F_2<Cl_2<Br_2<I_2 \): Bond dissociation enthalpy
IV. \( HI<HBr<HCl<HF \): Hydrogen-halogen bond strength
Deficiency of which vitamin causes convulsions?
Poly dispersity index of a polymer is 1.25. If \( \overline{M_n} = 800 \), what is its \( \overline{M_w} \)?
The graph drawn between \( \log \left( \frac{x}{m} \right) \) and \( \log (p) \) is shown below with intercept OA. What is the value of \( \frac{x}{m} \) at a pressure of 0.3 atm? (log 2 = 0.30, log 3 = 0.477)
Which of the following statements are correct? i. \( [\text{Mn(CN)}_6]^{3-},\ [\text{MnCl}_6]^{3-} \) both are paramagnetic
ii. Both \( [\text{NiCl}_4]^{2-},\ [\text{Ni(CO)}_4] \) are tetrahedral and diamagnetic
iii. \( [\text{Co(NH}_3)_6]^{3+} \) is inner orbital complex, but \( [\text{Ni(NH}_3)_6]^{2+} \) is outer orbital complex
A first-order reaction has the rate constant of \(1.15 \times 10^{-3} \, \text{s}^{-1}\). The time required to reduce 10 g of reactant to 6 g is \(x \times 10^2\) sec. What is the approximate value of \(x\)?