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AP EAPCET
List of top Questions asked in AP EAPCET
Consider the following Statement-I : \( \text{Al}_2\text{O}_3 \) is amphoteric in nature. Statement-II : \( \text{Tl}_2\text{O}_3 \) is more basic than \( \text{Ga}_2\text{O}_3 \). The correct answer is
AP EAPCET - 2025
AP EAPCET
Chemistry
Metallurgy
Compound 'X' is prepared commercially by the electrolysis of brine solution. Which of the following is not the use of 'X'?
AP EAPCET - 2025
AP EAPCET
Chemistry
Inorganic chemistry
Identify the incorrect order against the stated property.
AP EAPCET - 2025
AP EAPCET
Chemistry
Periodic Trends In Properties Of Elements
Consider the following A) 0.0025 B) 500.0 C) 2.0034 Number of significant figures in A, B and C respectively, are
AP EAPCET - 2025
AP EAPCET
Chemistry
Gas laws
At T(K), the following gaseous equilibrium is established. W + X \( \rightleftharpoons \) Y + Z The initial concentration of W is two times to the initial concentration of X. The system is heated to T(K) to establish the equilibrium. At equilibrium the concentration of Y is four times to the concentration of X. What is the value of \(K_c\)?
AP EAPCET - 2025
AP EAPCET
Chemistry
Law Of Chemical Equilibrium And Equilibrium Constant
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 = \(0.082 \, \text{L atm mol}^{-1} \text{ K}^{-1}\)).
AP EAPCET - 2025
AP EAPCET
Chemistry
Thermodynamics
At \(25 ^\circ\text{C}\), \(K_a\) of formic acid is \(1.8 \times 10^{-4}\). What is the \(K_b\) of \( \text{HCOO}^- \)?
AP EAPCET - 2025
AP EAPCET
Chemistry
Thermochemistry
Consider the following reaction A(g) + 3B(g) \( \longrightarrow \) 2C(g); \( \Delta H^\ominus = -24 \) kJ. At \(25 \, ^\circ\text{C}\) if \( \Delta G^\ominus \) of the reaction is -9 kJ, the standard entropy change (in JK\(^{-1}\)) of the same reaction at same temperature is
AP EAPCET - 2025
AP EAPCET
Chemistry
Stoichiometry and Stoichiometric Calculations
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?
AP EAPCET - 2025
AP EAPCET
Chemistry
Thermodynamics
At what temperature (in K) the rms velocity of SO\(_2\) molecules is equal to rms velocity of O\(_2\) molecules at \(27 \, ^\circ\text{C}\)?
AP EAPCET - 2025
AP EAPCET
Chemistry
The Valence Shell Electron Pair Repulsion (VSEPR) Theory
How many of the following molecules have two lone pairs of electrons on central atom? SF\(_6\), BF\(_3\), ClF\(_3\), PCl\(_5\), BrF\(_5\), XeF\(_4\), H\(_2\)O, SF\(_4\)
AP EAPCET - 2025
AP EAPCET
Chemistry
Inorganic chemistry
The de Broglie wavelength of an electron in the third Bohr orbit of H-atom is
AP EAPCET - 2025
AP EAPCET
Chemistry
Bohr’s Model for Hydrogen Atom
The correct order of the non-metallic character among the elements B, C, N, F and Si is
AP EAPCET - 2025
AP EAPCET
Chemistry
Inorganic chemistry
The difference between the radii of \(3^{rd}\) and \(2^{nd}\) orbit of H-atom is x pm. The difference between the radii of \(4^{th}\) and \(3^{rd}\) orbit of \( \text{Li}^{2+} \) ion is y pm. \(y:x\) is equal to
AP EAPCET - 2025
AP EAPCET
Chemistry
Periodic Table
The pair of molecules / ions with the same bond order value is
AP EAPCET - 2025
AP EAPCET
Chemistry
Inorganic chemistry
Each nuclear fission of \( {}^{235}\text{U} \) releases 200 MeV of energy. If a reactor generates 1 MW power, then the rate of fission in the reactor is
AP EAPCET - 2025
AP EAPCET
Physics
Nuclear Force
The ratio of the wavelengths of the first Lyman line and the second Balmer line of hydrogen atom is
AP EAPCET - 2025
AP EAPCET
Physics
Nuclear physics
When three NAND logic gates are connected as shown in the figure, then the logic gate equivalent to the circuit is
AP EAPCET - 2025
AP EAPCET
Physics
Semiconductors
If the rms value of the electric field of electromagnetic waves at a distance of 3 m from a point source is \( 3 \, \text{N C}^{-1} \), then the power of the source is
AP EAPCET - 2025
AP EAPCET
Physics
Electromagnetic waves
For transmitting a signal of frequency 1000 kHz, the minimum length of the antenna is
AP EAPCET - 2025
AP EAPCET
Physics
Amplitude Modulation
If the threshold wavelength of light for photoelectric emission to take place from a metal surface is \( 6250 \, \text{\AA} \), then the work function of the metal is (Planck's constant \( = 6.6 \times 10^{-34} \, \text{Js} \))
AP EAPCET - 2025
AP EAPCET
Physics
Photoelectric Effect
The device used for voltage regulation is
AP EAPCET - 2025
AP EAPCET
Physics
Transistors
A resistor of \(450 \, \Omega\) and an inductor are connected in series to an ac source of frequency \( \frac{75}{\pi} \, \text{Hz} \). If the power factor of the circuit is 0.6, then the inductance connected in the circuit is
AP EAPCET - 2025
AP EAPCET
Physics
Electromagnetic induction
If current of 80 A is passing through a straight conductor of length 10 m, then the total momentum of electrons in the conductor is (mass of electron \( = 9.1 \times 10^{-31} \) kg and charge of electron \( = 1.6 \times 10^{-19} \) C)
AP EAPCET - 2025
AP EAPCET
Physics
Power in Electric Circuits
In a wire of radius 1 mm, a steady current of 2 A uniformly distributed across the cross-section of the wire is flowing. Then the magnetic field at a point 0.25 mm from the centre of the wire is
AP EAPCET - 2025
AP EAPCET
Physics
Magnetism and matter
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