List of top Questions asked in AP EAPCET- 2026

At constant temperature, one mole of an ideal gas of volume 2L expanded to 100 L against an external pressure of 1 atm under reversible conditions. What is the work done (in J)? (1 L atm = 101.3 J; \(\log 5 = 0.7\))

Which of the following has no reaction with $NaNH_2$?

An alkene (X) with formula \(C_5H_{10}\) on ozonolysis gives butanone and methanal. X with HBr in the presence of organic peroxide gives Y as major product. When Y is subjected to Wurtz reaction gives Z. The number of \(1^{\circ}, 2^{\circ}\) and \(3^{\circ}\) carbons in Z respectively are:

An organic compound containing an extra element E on reaction with $Na_{2}O_{2}$ followed by boiling with $HNO_{3}$ gives a compound. This on treatment with ammonium molybdate solution gives yellow precipitate. What is E?

The IUPAC name of the following hydrocarbon is:

The correct IUPAC names of the compounds X and Y given below are respectively

The IUPAC name of $\text{CH}_3\text{-CH}_2\text{-CH(CH}_3\text{)-CH}_3$ is

Which of the following represents the structure of 'Terpineol'?

Which of the following is the strongest base in aqueous solution?

The incorrect statement in the following is:

The product Z of the given reaction sequence is: \(C_2H_4 \xrightarrow[(ii)\ KMnO_4/H^+]{(i)\ H_2O/H^+} X \xrightarrow{SOCl_2} Y \xrightarrow{(C_2H_5)_2Cd} Z\)

What is the IUPAC name of the compound formed when m-cresol is subjected to dinitration?

Which one of the following is not correct?

In the estimation of sulphur by Carius method. x g of an organic compound gave 0.233 g of \(BaSO_{4}\) If the percentage of sulphur in it is 8.89%, the value of x is

If average kinetic energy per molecule is \( 3 \times 10^{-21} \) J, pressure of gas depends on:

At what temperature is the root mean square (rms) speed of oxygen molecules ($O_2$) equal to that of helium molecules ($He$) at $27^\circ\text{C}$? (Given molar mass of $O_2 = 32\text{ g/mol}$, $He = 4\text{ g/mol}$)

The mean free path of a gas molecule of diameter d and number density n (number of molecules per unit volume) is inversely proportional to:

A thermally insulated vessel contains an ideal gas of molecular weight M and specific heat ratio $\gamma$. If it is moving with speed V and suddenly brought to rest, the temperature increase is:

The specific heat capacity of a gas at constant pressure ($C_p$) and at constant volume ($C_v$) are related as

The ratio of the degrees of freedom of a monoatomic gas and a nonlinear polyatomic gas having 2 vibrational modes is:

A circular coil of radius 8 cm, 400 turns and resistance \( 2\,\Omega \) is placed with its plane perpendicular to the horizontal component of the earth's magnetic field. It is rotated about its vertical diameter through \( 180^{\circ} \) in 0.30 sec. Horizontal component of the earth's magnetic field at the place is \( 3\times10^{-5} \) T. The magnitude of current induced in the coil is approximately:

A metal sheet is placed in a magnetic field whose magnitude changes from zero to maximum. The direction of eddy currents produced in the plate is shown in the figure. Then the direction of magnetic field is:

The self-inductance of a solenoid of length $l$, area of cross-section $A$ and number of turns $N$ is proportional to