List of top Questions asked in TS EAMCET- 2026

At \(T\)(K), the following data is obtained for the decomposition of \(A(g)\), which follows first order kinetics \[ A(g)\rightarrow B(g)+C(g) \] \[ \begin{array}{|c|c|} \hline \text{Time (s)} & \text{Total pressure (atm)} \hline 0 & 0.5 100 & 0.6 x & 0.65 \hline \end{array} \] What is \(x\) (in s)? \[ (\log1.25=0.097,\qquad \log1.4285=0.1549) \]

A metal crystallizes in cubic lattice with edge length of \(4\ \text{\AA}\). The number of unit cells of this metal present in \(128\ \text{cm}^3\) volume is

An alkene, \(\mathrm{C_4H_8}\) (\(X\)), on reaction with HBr gives a compound \(Y\). Hydrolysis of \(Y\) follows the \(S_\mathrm{N}1\) mechanism. The ozonolysis products of \(X\) are

If two liquids \(A\) and \(B\) have \[ P_A^\circ:P_B^\circ=1:2 \] and have mole fraction in solution as \(1:2\), then mole fraction of \(B\) in vapour phase is

Given below are two statements Statement-I: The solubility of \(\mathrm{CaCl_2}\) and \(\mathrm{MgCl_2}\) in water is more than that of \(\mathrm{NaCl}\). Statement-II: \(\mathrm{Ca(NO_3)_2}\) on heating gives three products. The correct answer is

Empirical formula weight of borazine is \[ (\text{At. wt: }H=1\ \text{u},\ B=10.8\ \text{u},\ N=14\ \text{u}) \]

Which of the following reactions give hydrogen gas? \[ \begin{aligned} \text{I. }&\text{Reaction of tin with steam} \text{II. }&\text{Passage of steam over hot coke} \text{III. }&\text{Passage of air over hot coke} \end{aligned} \] The correct answer is

An alkene, \(X\) \((\mathrm{C_5H_{10}})\) exhibits cis/trans isomerism. Bromination of \(X\) followed by reaction with reagent(s) \(Y\) gave the product \(Z\). What are \(Y\) and \(Z\)?

IUPAC names of the following compounds \(X\) and \(Y\) are respectively

The chemical prepared by Solvay's process is \(X\). The chemical prepared by Castner-Kellner process is \(Y\). \(X\) and \(Y\) are respectively

The pH of \(0.01\) M aqueous aniline solution at \(298\) K is \(8.3\). Its degree of dissociation \((\alpha)\) is \[ (K_b\text{ of aniline}=4\times10^{-10}; \ \text{antilog}(0.7)=5.0; \ \text{antilog}(0.3)=2.0; \ \text{antilog}(0.4)=2.5) \]

What is the enthalpy change (in kJ mol\(^{-1}\)) for the following reaction? \[ \mathrm{CH_4(g)\rightarrow C(g)+4H(g)} \] Given \[ \Delta_fH^\circ(\mathrm{CH_4})=-74.8\ \text{kJ mol}^{-1}, \] \[ \mathrm{H_2(g)\rightarrow 2H(g)};\qquad \Delta_aH^\circ=435\ \text{kJ mol}^{-1}, \] \[ \mathrm{C(s)\rightarrow C(g)};\qquad \Delta_aH^\circ=716.7\ \text{kJ mol}^{-1}. \]

In which of the following compounds, the size of manganese is maximum?

Consider the following \[ \mathrm{HF,\ H_2O,\ BeCl_2,\ CO_2,\ BF_3,\ NF_3,\ CCl_4,\ CHCl_3} \] The number of polar molecules is

A solution is prepared by reacting \(500\) mL of \(0.2\) M \(\mathrm{KMnO_4}\) with \(500\) mL of \(0.2\) M \(\mathrm{KBr}\) solution in basic medium. What are the concentrations of \(\mathrm{KBr}\) and \(\mathrm{KBrO_3}\) respectively in the resultant solution?

How many of the following molecules ions are paramagnetic in nature? \[ \mathrm{N_2,\ O_2,\ F_2,\ NO,\ CO,\ O_2^-,\ O_2^{2-},\ N_2^+,\ NO^+,\ NO^-,\ H_2} \]

Which of the following is an endothermic process? \((g=\text{gas})\)

At \(T\)(K), the pressure of two ideal gases \(A\) and \(B\) is in the ratio \[ P_A:P_B=2:5. \] At this temperature, their densities are the same. The molar mass ratio \[ (M_A:M_B) \] is

If the peak voltage of message signal is \(60\%\) less than the peak voltage of the carrier wave, then the modulation index is

The work functions of three metals \(A\), \(B\) and \(C\) are respectively \(2.25\), \(2.42\) and \(3.6\) eV. All the three metals are irradiated with light of wavelength \(330\) nm. The kinetic energies of photoelectrons emitted from \(A\), \(B\) and \(C\) are respectively \(E_A\), \(E_B\) and \(E_C\). The correct relationship among \(E_A\), \(E_B\) and \(E_C\) is \[ (h=6.6\times10^{-34}\ \mathrm{Js},\; c=3\times10^8\ \mathrm{ms^{-1}}) \]

The current gain of a common emitter amplifier is \(50\) and its power gain is \(3000\). If the input resistance of the amplifier is \(1200\,\Omega\), then its output resistance is

If a graph is drawn between the binding energy per nucleon and the mass number of nucleus, then the mass number of the nucleus for which the binding energy per nucleon has a maximum value is

If the band gap of a semiconductor is equal to the energy of a photon of wavelength \(620\) nm, then the minimum thermal energy required for the generation of \(8\) electron-hole pairs is nearly

Observe the given two statements about \(\alpha\)-particle experiment and Rutherford assumptions. Statement-I: The ratio of atomic radius to its nuclear radius is \(10^5\). Statement-II: In an atom, the majority of the space is vacant. The correct answer is

When an inductor and a resistor are connected in series to an AC source, the power factor of the circuit is \[ \frac{2}{\sqrt{13}}. \] If the same resistor and a capacitor are connected in series to the same AC source, then the power factor of the circuit is \[ \frac{1}{\sqrt2}. \] If these inductor, capacitor and resistor are connected in series to the same AC source, then the ratio of the resistance and impedance of the LCR circuit is