List of top Questions asked in AP EAMCET

Two ideal gases A and B of the same number of moles expand at constant temperatures $ T_1 $ and $ T_2 $ respectively such that the pressure of gas A decreases by $ 50% $ and the pressure of gas B decreases by $ 75% $. If the work done by both the gases is the same, then the ratio $ T_1:T_2 $ is:

A superconductor exhibits:

A charged particle moving along a straight-line path enters a uniform magnetic field of $ 4 $ mT at right angles to the direction of the magnetic field. If the specific charge of the charged particle is $ 8 \times 10^7 $ C/kg, the angular velocity of the particle in the magnetic field is:

In a potentiometer, the area of cross-section of the wire is 4 cm$^2$, the current flowing in the circuit is 1 A, and the potential gradient is 7.5 Vm$^{-1}$. Then the resistivity of the potentiometer wire is

5 boys and 6 girls are arranged in all possible ways. Let $X$ denote the number of linear arrangements in which no two boys sit together, and $Y$ denote the number of linear arrangements in which no two girls sit together. If $Z$ denotes the number of ways of arranging all of them around a circular table such that no two boys sit together, then $X:Y:Z$ = ?

The radiation of energy $ E $ falls normally on a perfectly reflecting surface. The momentum transferred to the surface is:

At $T(K)$, the rms velocity of methane is $x \, {ms}^{-1}$. What is the kinetic energy (in J) of 8 g of methane at the same temperature
(Assume methane as an ideal gas)

For $ a \in \mathbb{R} \setminus \{0\} $, if $ a \cos x + a \sin x + a = 2K + 1 $ has a solution, then $ K $ lies in the interval:

In $\triangle ABC$, $bc - r_2 r_3 = $

K_cfor the reaction \[ A(g) \rightleftharpoons T(K) + B(g) \] is 39.0. In a closed one-litre flask, one mole of $ A(g) $ was heated to $ T(K) $. What are the concentrations of $ A(g) $ and $ B(g) $ (in mol L$^{-1}$) respectively at equilibrium?

Which of the following is/are estimated by titrating polluted water with potassium dichromate solution in acidic medium?

Hydrated sodium aluminum silicate is called:

Two statements are given below
Statement I: Adsorption of a gas on the surface of charcoal is primarily an exothermic reaction
Statement II: A closed vessel contains O$_2$, H$_2$, Cl$_2$, NH$_3$ gases. Its pressure is P (atm). About 1 g of charcoal is added to this vessel and after some time its pressure was found to be less than P (atm)
The correct answer is

216 small identical liquid drops each of surface area $ A $ coalesce to form a bigger drop. If the surface tension of the liquid is $ T $, the energy released in the process is

An elevator can carry a maximum load of 2000 kg (elevator + passengers) and is moving up with a constant speed of 9 km/h. If the frictional force opposing the motion is $ 5 \times 10^3 $ N, the minimum power delivered by the motor to the elevator is (acceleration due to gravity = 10 ms$^2$)

Two long straight parallel conductors A and B carrying currents 4.5 A and 8 A respectively are separated by 25 cm in air. The resultant magnetic field at a point which is a distance of 15 cm from conductor A and 20 cm from conductor B is:

If the plane \[ x - y + z + 4 = 0 \] divides the line joining the points \[ P(2,3,-1) \quad {and} \quad Q(1,4,-2) \] in the ratio $ l:m $, then $ l + m $ is:

If the curves $$ 2x^2 + ky^2 = 30 \quad \text{and} \quad 3y^2 = 28x $$ cut each other orthogonally, then $ k = $

At a place the horizontal component of earth’s magnetic field is $ 3 \times 10^{-5} $ T and the magnetic declination is $ 30^\circ $. A compass needle of magnetic moment $ 18 $ A$m^2$ pointing towards geographic north at this place experiences a torque of:

The first ionization enthalpy (IE$_1$) and second ionization enthalpy (IE$_2$) of Mg(g) are 178 and 348 kcal mol$^{-1}$ respectively. The energy required for the reaction Mg(g) $\rightarrow$ Mg$^{2+}$(g) + 2e$^{-}$ (in kcal mol$^{-1}$) is:

Which of the following sets are not correctly matched?
i. XeF₄ - sp³
ii. SF₄ - sp³d
iii. SO₃ - sp²
iv. SnCl₂ - sp

At 293 K, the density of an aqueous solution containing 120 g of urea (NH$_2$CONH$_2$) per dm$^3$ is 1.02 kg dm$^{-3}$. The mole fraction of urea is approximately:

Which of the following amino acids possess two chiral centres?

Adsorption of a gas on a solid obeys the Freundlich adsorption isotherm. In the graph drawn between $\log (x/m)$ (on the y-axis) and $\log p$ (on the x-axis), the slope and intercept are found to be 1 and 0.3, respectively. If the initial pressure of the gas is 0.02 atm, the mass of the gas adsorbed per gram of solid is (${antilog } 0.3 = 2$).

Find the sum of the sequence: $ 2 + 3 + 5 + 6 + 8 + 9 + \dots + 2n $ terms.