List of top Questions asked in AP EAPCET

Identify the correct statements
I) Enthalpy is an intensive property
II) For, H$_2$O(l) $\longrightarrow$ H$_2$O(g) process, $\Delta S$ increases
III) Entropy is a state function
The work done in rotating a bar magnet which is initially in the direction of a uniform magnetic field through $ 45^\circ $ is $ W $. The additional work to be done to rotate the magnet further through $ 15^\circ $ is.
If the maximum velocity and maximum acceleration of a particle executing simple harmonic motion are respectively \( 5 \, \text{m s}^{-1} \) and \( 10 \, \text{m s}^{-2} \), then the time period of oscillation of the particle is
As shown in the figure, the work done to move the charge 'Q' from point C to point D along the semi-circle CRD is
work done to move the charge ’Q’ from point C to point D
What are X and Y respectively in the following set of reactions?
The period and group numbers of the element having maximum electronegativity in the long form of periodic table, respectively, are
The percentage of ionization of \( 1 \, \text{L} \) of \( x \, \text{M} \) acetic acid is \( 4.242\% \) and is called solution "A". The percentage of ionization of \( 1 \, \text{L} \) of \( y \, \text{M} \) acetic acid is \( 3\% \) and is called solution "B". Solution "A" is mixed with solution "B". What is the concentration of acetic acid in the resultant solution? (\( K_a \) of acetic acid = \( 1.8 \times 10^{-5} \))
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 \(K_c\)?

Match the items given in List-I and List-II.

 

At \( T \)(K), the vapour pressure of pure benzene and toluene are \( 75 \) and \( 22 \) mm Hg respectively. 23.4 g of benzene and 64.4 g of toluene are mixed to form an ideal solution. If the vapours are in equilibrium with the liquid mixture, the mole fraction of toluene in vapour phase is:
The enthalpy change (ΔH) for the reaction N2(g) + 3H2(g) → 2NH3(g) is -92 kJ/mol.

What is the enthalpy change for the decomposition of 1 mol of NH3(g) into its elements?
How many atoms are present in 1 mole of oxygen gas (O2)?
Choose the incorrect statement from the following
If the tension in the horizontal wire shown in the figure is 30 N, then the weight \( W \) and tension in the wire \( OA \) are respectively:
tension in the horizontal wire
Of the following, the pair of physical quantities not having the same dimensional formula is:
Among the following compounds, which one is not responsible for the depletion of ozone layer?
At what temperature (in K) the rms velocity of SO\(_2\) molecules is equal to rms velocity of O\(_2\) molecules at \(27 \, ^\circ\text{C}\)?
A thin circular ring and a circular disc of equal mass are rolling without sliding. If their linear velocities are equal and the total kinetic energy of the disc is 6 J, then the total kinetic energy of the ring is:
The structure of the product 'Z' in the reaction sequence is: \[ \text{CHO} \] \[ \mid \] \[

A part of a circuit is shown in the figure. The ratio of the potential differences between the points A and C, and the points D and E is.

 

The number of amphoteric oxides from the following is
\(\mathrm{CO_2, GeO_2, SnO_2, PbO_2, CO, GeO, SnO, PbO}\)
The magnetic moment of an electron moving in a circular orbit of radius R with a time period T is
If \( \alpha \) is the common root of the quadratic equations \( x^2 - 5x + 4a = 0 \) and \( x^2 - 2ax - 8 = 0 \), where \( a \in \mathbb{R} \), then the value of \( \alpha^4 - \alpha^3 + 68 \) is:
If \( \frac{3x+1}{(x-1)(x^2+2)} = \frac{A}{x-1} + \frac{Bx+C}{x^2+2} \), then \( 5(A-B) = \)?
The crystal system of a compound with cell dimensions \( a = 0.387 \), \( b = 0.387 \), \( c = 0.504 \text{ nm} \); \( \alpha = \beta = 90^{\circ} \) and \( \gamma = 120^{\circ} \) is