List of top Questions asked in AP EAPCET- 2025

The IUPAC name of the complex shown below is:
K₃[Co(COₓ)₃]

At T(K), a gaseous mixture contains H$_2$ and O$_2$. The total pressure of the mixture is 2 bar. The weight percentage (w/w) of H$_2$ is 33.33%. What is the approximate ratio of partial pressure of H$_2$ and O$_2$?

Which of the following reagents will oxidise glucose to gluconic acid?
Br$_2$/H$_2$O
HNO$_3$
[Ag(NH$_3$)$_2$]^+ / OH$^-$

Which one of the following is not the correct characteristic property of physical adsorption?

At 27$^{\circ}$C, 1 L of H$_2$ with a pressure of 1 bar is mixed with 2 L of O$_2$ with a pressure of 2 bar in a 10 L flask. What is the pressure exerted by gaseous mixture in bar? (Assume H$_2$ and O$_2$ as ideal gases)

An alcohol X(C$_4$H$_{10}$O) on dehydration gave alkene (C$_4$H$_8$) as major product, which on bromination followed by treatment with Y gave alkyne C$_4$H$_6$. Alkyne C$_4$H$_6$ does not react with sodium metal. What are X and Y?

For which reaction $ \Delta H \neq \Delta U $?

Among the following compounds, which one is not responsible for the depletion of ozone layer?

Observe the following statements about dry cell:
It is a primary battery.
Zinc vessel acts as cathode.
A paste of moist $ \text{NH}_4\text{Cl}, \text{MnO}_2 $, and $ \text{ZnCl}_2 $ is present between two electrodes.
The potential of this cell is 1.5 V.

KMnO$_4$ oxidises hydrogen sulphide in acidic medium. The number of moles of KMnO$_4$ which react with one mole of hydrogen sulphide is

Which of the following will give a white precipitate with $ \text{AgNO}_3 $ solution?

For one mole of an ideal gas, three isochors were obtained at $V_1, V_2$ and $V_3$ respectively. Their slopes are $m_1, m_2$ and $m_3$. If $V_1<V_2<V_3$, then the correct relationship of slopes is:

The correct sequence of reactions involved in the conversion of $n$-heptane to benzene is:

How many of the following molecules / ions have a trigonal planar structure?
$ \text{BO}_3^{3-}, \, \text{NH}_3, \, \text{PCl}_3, \, \text{BCl}_3, \, \text{ClF}_3, \, \text{XeO}_3 $

Which of the following is the correct statement for an ideal gas (constant =$ \textit{energy}$ )?

Choose the incorrect statement from the following

Match the following

Consider the following sequence of reactions.
\[ \mathrm{C}_6\mathrm{H}_5\mathrm{COONa} \xrightarrow{\text{NaOH/CaO}, \Delta} \text{X} \xrightarrow{\text{CO} + \text{HCl}, \text{Anhyd. AlCl}_3} \text{Y} \xrightarrow{\text{NaOH}} \text{A} + \text{B} \]
If A is the reduction product of Y, what is B?

White phosphorus on heating with concentrated NaOH solution in an inert atmosphere of CO$_2$ gives a salt 'X' and gas 'Y'. The oxidation state of central atom in X and Y is respectively

The de Broglie wavelengths of two fast-moving particles $ X $, $ Y $ are $ 1 $ nm, $ 3 $ nm respectively. Mass of $ X $ is nine times the mass of $ Y $. The ratio of kinetic energies of $ X $, $ Y $ is:

Consider the following Statement-I : Lactose is composed of $ \alpha $-D-glucose and $ \beta $-D-glucose. Statement-II : Lactose is a reducing sugar. The correct answer is

The radius of fourth orbit in $ He^+ $ ion is $ R_1 $ pm and radius of third orbit in $ Li^{2+} $ ion is $ R_2 $ pm. The value of $ (R_1 - R_2) $ in pm is:

Which of the following is not correct?

In the given reaction sequence, conversion of Acetophenone ($ C_6H_5COCH_3 $) to Ethylbenzene ($ C_6H_5CH_2CH_3 $) is an example of: \[ \text{CH}_3\text{COC/} \] \[ \text{Anhy. AlCl}_3 \xrightarrow{\text{X}} \xrightarrow{\text{(1) N}_2\text{H}_4} Y \] \[ \Delta \xrightarrow{\text{(2) KOH / glycol}} \]