List of top Questions asked in AP EAMCET

If \(\sinh x = \dfrac{\sqrt{21}}{2}\) then \(\cosh 2x + \sinh 2x = \)
A metallic wire loop of side \( 0.1 \) m and resistance of \( 10 \Omega \) is moved with a constant velocity in a uniform magnetic field of \( 2 \text{ Wm}^{-2} \) as shown in the figure. The magnetic field is perpendicular to the plane of the loop. The loop is connected to a network of resistors. The velocity of loop so as to have a steady current of \( 1 \) mA in loop is:
A metallic wire loop of side 0.1 m and resistance
The principal quantum number \( n \) corresponding to the excited state of \( He^+ \) ion, if on transition to the ground state two photons in succession with wavelengths \( 1026 \text{\AA} \) and \( 304 \text{\AA} \) are emitted: \((R = 1.097 \times 10^7 \text{ m}^{-1})\)
The ratio of ground state energy of \( \text{Li}^{2+}, \text{He}^{+}, \text{H} \) is:
Identify the correct statements from the following:
i. Reaction of hydrogen with fluorine occurs even in dark.
ii. Manufacture of ammonia by Haber process is an endothermic reaction.
iii. HF is an electron-rich hydride.
In which of the following reactions, hydrogen is one of the products?
Two statements are given below:
Statement I: SnF\(_4\), PbF\(_4\) are ionic in nature.
Statement II: GeCl\(_2\) is more stable than GeCl\(_4\).
The correct answer is:
Species A, B, C, D formed in the following bond cleavages respectively are
bond cleavages
Two statements are given below.
Statement I: The reaction Cr$_2$O$_3$ + 2Al → 2Cr + Al$_2$O$_3$ (ΔG° = -421 kJ) is thermodynamically feasible.
Statement II: The above reaction occurs at room temperature.
The correct answer is
Consider the following reactions. \[ \text{C}_2\text{H}_2 + \text{H}_2\text{O} \xrightarrow[\text{333 K}]{\text{Hg}^{2+}/\text{H}^+} [X] \xrightleftharpoons{\text{Isomerization}} Y \] Y cannot be obtained from which of the following reactions?
Conversion of X to Y is an example of
Conversion of X to Y is an example of
Which of the following is not an example of allylic halide?
Which of the following reactions of KMnO$_4$ occurs in acidic medium?
The rate constant of a first order reaction was doubled when the temperature was increased from 300 to 310 K. What is its approximate activation energy (in kJ mol\(^{-1}\))?
(R = 8.3 J mol\(^{-1}\) K\(^{-1}\), \(\log 2 = 0.3\))
Consider the cell reaction, at 300 K.
A\(^+ (aq)\) + B\(^3+\) (aq) \(\rightleftharpoons\) A\(^2+\) (aq) + B (g) Its \(E^\circ\) is 1.0 V. The \(\Delta_r H^\circ\) of the reaction is -163 kJ mol\(^{-1}\). What is \(\Delta_r S^\circ\) (in J K\(^{-1}\) mol\(^{-1}\)) of the reaction?
(F = 96500 C mol\(^{-1}\))
Match the pollutant in List I with its maximum permissible limit in drinking water given in List II.

maximum permissible limit in drinking water

Which one of the following alkali metals is the weakest reducing agent as per their \( E^\circ \) values?
Observe the following reaction: \[ ABO_3 (s) \xrightarrow{1000 K} AO (s) + BO_2 (g) \] The enthalpy change \( \Delta H \) for this reaction is \( x \) kJ mol\(^{-1} \). What is its \( \Delta U \) (in kJ mol\(^{-1}\)) at the same temperature? (R = 8.3 \text{ J mol}^{-1} \text{ K}^{-1})
100 mL of 0.1 M \( Fe^{2+} \) solution was titrated with \( \frac{1}{60} \) M \( Cr_2O_7^{2-} \) solution in acid medium. What is the volume (in L) of \( Cr_2O_7^{2-} \) solution consumed?
The number of lone pairs of electrons on the central atom of \( BrF_5 \), \( XeO_3 \), \( SO_3 \) respectively are:
If \( R_C \) and \( R_B \) are respectively the resistances of in collector and base sides of the circuit, and \( \beta \) is the current amplification factor, then the voltage gain of a transistor amplifier in common emitter configuration is:
In the circuit shown in the figure, neglecting the source resistance, the voltmeter and ammeter readings respectively are:
voltmeter and ammeter readings
Current flows in a conductor from east to west. The direction of the magnetic field at a point below the conductor is towards:
The magnitude of an electric field which can just suspend a deuteron of mass \( 3.2 \times 10^{-27} \) kg freely in air is:
The angle between the axes of a polariser and an analyser is \( 45^\circ \). If the intensity of the unpolarized light incident on the polariser is \( I \), then the intensity of the light emerged from the analyser is: