List of top Chemistry Questions asked in AP EAPCET

For one mole of an ideal gas an isochore is obtained. The slope of the isochore is \(0.082 \, \text{atm K}^{-1}\). What will be its pressure (in atm) when the temperature is 12.2 K? (R = \(0.082 \, \text{L atm mol}^{-1} \text{ K}^{-1}\)).
If $\Delta_r H^{\ominus}$ and $\Delta_r S^{\ominus}$ are standard enthalpy change and standard entropy change respectively for a reaction, the incorrect option is
The energy required to increase the temperature of 180 g of liquid water from 10$^\circ$C to 15$^\circ$C is 3765 J. What is $C_p$ of water in J mol$^{-1}$ K$^{-1}$? ($H_2O$ = 18 u)
One mole of \( \text{C}_2\text{H}_5\text{OH(l)} \) was completely burnt in oxygen to form \( \text{CO}_2\text{(g)} \) and \( \text{H}_2\text{O(l)} \). The standard enthalpy of formation (\( \Delta_f H^\ominus \)) of \( \text{C}_2\text{H}_5\text{OH(l)} \), \( \text{CO}_2\text{(g)} \) and \( \text{H}_2\text{O(l)} \) is x, y, z kJ mol\(^{-1}\) respectively. What is \( \Delta_r H^\ominus \) (in kJ mol\(^{-1}\)) for this reaction?
The C$_p$ of H$_2$O(l) is 75.3 J mol$^{-1}$ K$^{-1}$. What is the energy (in J) required to raise 180 g of liquid water from 10$^{\circ}$C to 15$^{\circ}$C? (H$_2$O = 18 u)
At \( T \)(K), hydrogen and oxygen gases are mixed in the ratio of \( 1:2 \) by mass in a closed vessel of volume \( V \) litres. If the total pressure of the gaseous mixture is \( p \) atm, the partial pressure of oxygen (in atm) is:
At \( 298 \) K, \( \Delta U^\circ \) and \( \Delta S^\circ \) for the following reaction are \( -10.5 \) kJ and \( +44.1 \) J\( K^{-1} \); \( 2X(g) + Y(g) \longrightarrow 2Z(g) \). What is \( \Delta G^\circ \) (in kJ) for this reaction? (\( R = 8.314 \) J\( K^{-1} \)mol\(^{-1} \))
For one mole of an ideal gas an isochore is obtained. The slope of the isochore is \(0.082 \, \text{atm K}^{-1}\). What will be its pressure (in atm) when the temperature is 12.2 K? (R = \(0.082 \, \text{L atm mol}^{-1} \text{ K}^{-1}\)).
In compound (X), hyperconjugation is present and in (Y), resonance effect is present. What are X and Y, respectively?
The total maximum number of electrons possible in 3d, 6d, 5s and 4f orbitals with \(m_l\) (magnetic quantum number) value -2 is
At T(K), a gaseous mixture contains H\(_2\) and O\(_2\). The total pressure of the mixture is 2 bar. The weight percentage (w/w) of H\(_2\) is 33.33%. What is the approximate ratio of partial pressure of H\(_2\) and O\(_2\)?
The correct order of atomic radii of C, Al and S is
Identify the compound which is least reactive towards nucleophilic substitution reactions.
In an element with atomic number (Z) 25, the number of electrons with (n + l) value equal to 3 and 4 are x and y respectively. The value of (x + y) is
A metal crystallizes in simple cubic lattice. The volume of one unit cell is \( 6.4 \times 10^{-7} \, \text{pm}^3 \). What is the radius of the metal atom in pm?
Which of the following enzymatic reaction is not correctly matched with enzyme shown against it in brackets?
Which method is used to purify liquids having very high boiling points and liquids which decompose at or below their boiling point?

What is the molarity of a solution prepared by dissolving 5.85 g of NaCl in 500 mL of water? 
(Molar mass of NaCl = 58.5 g/mol)

What volume will 2 moles of an ideal gas occupy at STP (Standard Temperature and Pressure)?
An alcohol, X (C\(_5\)H\(_{12}\)O) in the presence of Cu/573K gives Y (C\(_5\)H\(_{10}\)). The reactants required for the preparation of X are
A carbonyl compound X (C\(_8\)H\(_8\)O) undergoes disproportionation with conc. KOH on heating. Product of X with Zn-Hg/HCl is Y and product of X with NaBH\(_4\) is Z. What are Y and Z respectively?
What are X and Y respectively in the following sets of reactions? (major product)
The sequence of reagents required to convert aniline to benzoic acid is:
What are X and Y respectively in the following set of reactions?
What is the major product Y in the following reaction sequence?