List of top Questions asked in AP EAPCET- 2026

Acrolein, formaldehyde and peroxy acetyl nitrate are the main compounds present in photochemical smog. The total number of $\text{sp}^2$ carbons present in these three compounds is
Given below are statements
Statement I: Unit cell in a lattice has six characteristic parameters
Statement II: In fcc lattice, the total number of atoms/ions per unit cell is 4
The time taken for 60% completion of a first order reaction is 13.22 min. What is its half-life ($t_{1/2}$) in min? ($\log(2.5) = 0.398$)
The bond order of a homodiatomic molecule is 3. If the number of bonding electrons in it is 10, the number of antibonding electrons will be
In group 14 elements, element X has lowest melting point. This on heating with steam gives a compound Y. What is Y?
3 g of $\text{O}_2$ diffuses from a container in 15 min. The mass (in g) of $\text{SO}_2$ diffusing from the same container under the same conditions is (At. wt: $\text{O} = 16$ u, $\text{S} = 32$ u)
Which of the following orders correctly represent the strength of ligands in the spectrochemical series?
I. $\text{I}^- \lt \text{Br}^- \lt \text{S}^{2-} \lt \text{SCN}^-$
II. $\text{H}_2\text{O} \lt \text{NCS}^- \lt \text{NH}_3 \lt \text{en}$
III. $\text{Cl}^- \lt \text{F}^- \lt \text{N}^{3-} \lt \text{OH}^-$
Identify the set of reagents (X) in the given reaction sequence
The nature of oxides of aluminium, boron and gallium are respectively
In hydrogen spectrum, the frequency of the spectral line corresponding to electron transition $n_2 = 3$ to $n_1 = 2$ is $x$ Hz. What is the frequency (in Hz) of the spectral line corresponding to electron transition $n_2 = 4$ to $n_1 = 3$ of $\text{He}^+$ spectrum?
Which of the following statements is correct?
A solution is prepared by dissolving ethanol in water. The mole fraction of ethanol in this solution is 0.04. What is the molarity (in $\text{mol L}^{-1}$) of the solution? (density of water is $1\text{ g mL}^{-1}$. Neglect the volume of ethanol)
The pH of 1 L of HCl solution is 1.0. What is the volume (in L) of water to be added to this solution to increase its pH to 2.0?
What is the IUPAC name of the product Y formed in the given sequence of reactions? \[ \text{Isobutane} \xrightarrow{\text{KMnO}_4} \text{X} \xrightarrow{\text{(i) Na, (ii) }\text{CH}_3-\text{Br}} \text{Y} \]
A force of $250\text{ N}$ is required to lift a mass of $75\text{ kg}$ through a pulley system. In order to lift this mass through $3\text{ m}$, the rope has to be pulled through $12\text{ m}$. The efficiency of the system is:
A particle is moving along a straight line such that its velocity is increasing at $5\text{ ms}^{-1}$ per meter. When its velocity becomes $20\text{ ms}^{-1}$ its acceleration is:
When a light ray is incident on a small angle prism of material of refractive index 1.5, the angle of minimum deviation is $7^\circ$. If the prism is immersed in a liquid of refractive index 1.2, then the angle of minimum deviation is:
The ratio of moment of inertia with respect to their diameters of a circular disc and a solid sphere having same radii and same masses is:
The coefficient of mutual induction between the primary and secondary coil of a transformer is $0.4\text{ H}$. When the current in the primary coil changes at the rate of $10\text{ As}^{-1}$, then the induced emf in the secondary will be:
Magnetic field at $0.1\text{ m}$ from a long straight wire carrying $10\text{ A}$ current is:
Two long parallel straight conductors separated by $10\text{ cm}$ carrying currents $20\text{ A}$, $40\text{ A}$ in the same direction. The work required per unit length to move the conductors apart to $30\text{ cm}$ is [Take $\log_{10} 3 = 0.4771$]:
Ten resistors, each having resistance of $6\text{ }\Omega$, are connected in a circuit. Then the ratio of maximum current to the minimum current that can flow through the circuit is:
A wire of length $1\text{ m}$ is broken into two unequal parts $P$ and $Q$. Part $P$ is extended to double its length so that its resistance become equal to resistance of $Q$. The length of $Q$ part is:
An object placed in front of a concave mirror at a distance of $x\text{ cm}$ from the pole gives a 3 times magnified real image. If it is moved to a distance of $(x + 5)\text{ cm}$, the magnification of the image becomes 2. The focal length of the mirror is:
A source of sound and an observer are moving each with a speed of $10\%$ of the speed of sound in air. If the frequency of sound heard by the observer when they approach each other is $400\text{ Hz}$ more than the frequency of sound heard by the observer when they move away from each other, then the frequency of the source of sound is: