List of top Questions asked in AP EAPCET- 2025

Consider the following Statement-I: Alkali metals dissolve in liquid ammonia and form deep blue solutions.
Statement-II: The order of melting and boiling points of alkali metal halides follow the trend:
Fluoride< chloride< bromide< iodide.

At 25$^\circ$C, the percentage of ionization of 'x' M acetic acid is 4.242. What is the value of x? $(K_a = 1.8 \times 10^{-5})$

Which of the following statements are correct regarding lithium and magnesium?
I) They react slowly with water
II) Their bicarbonates are solids
III) Their chlorides are not soluble in ethanol
IV) Their nitrates decompose easily on heating

Identify the correct set of molecules with zero dipole moment.

Consider the following changes I and II
Change I: ${O2 → O2^{2-}}$
Change II: ${O2 → O2^{-}}$
The correct statements about these changes (I) and (II) in accordance with MO theory are

The pair of molecules / ions with the same bond order value is

A molecule has a T-shape. The total number of electron pairs in the valence shell of its central atom is:

The electronic configurations of four elements A, B, C, D are given below:
(A) 1s22s22p63s1
(B) 1s22s22p63s23p1
(C) 1s22s22p63s2
(D) 1s22s22p63s23p2

Match the following pollutant concentration limits in water with their effects:

List-I (Pollutant Concentration Limit in Water)	List-II (Effect)
Pollutant 1	Effect 1
Pollutant 2	Effect 2
Pollutant 3	Effect 3
Pollutant 4	Effect 4

Which of the following sets are correctly matched?

Molecule	Hybridization	Geometry
I. BrF₅	sp³d²	square pyramidal
II. XeF₆	sp³d³	Distorted octahedral
III. SF₄	dsp²	square planar
IV. PbCl₂	sp	linear

Consider the sets I, II and III. Identify the set(s) which is (are) correctly matched.
[I.] Staggered ethane>eclipsed ethane \dotfill torsional strain
[II.] 2,2-Dimethylbutane>2-methylpentane \dotfill boiling point
[III.] cis-But-2-ene>trans-But-2-ene \dotfill dipole moment

The sum of number of antibonding electrons present in O$_2$, O$_2^+$, O$_2^-$ is:

Among $ \text{B}_2\text{O}_3 $, $ \text{Al}_2\text{O}_3 $, and $ \text{In}_2\text{O}_3 $, the oxides which react with alkalies are:

The incorrect statement from the following is

Which of the following orders is not correct about the property shown against it?

Which of the following orders are correct against the stated property?
I) NaO$_2 < KO$_2 < RbO$_2 < CsO$_2$ — stability
II) Mg(OH)$_2 < Ca(OH)$_2 < Sr(OH)$_2$ — basic strength
III) MgCO$_3 < CaCO$_3 < SrCO$_3$ — thermal stability

How many of the following molecules have two lone pairs of electrons on central atom? SF$_6$, BF$_3$, ClF$_3$, PCl$_5$, BrF$_5$, XeF$_4$, H$_2$O, SF$_4$

Compound 'X' is prepared commercially by the electrolysis of brine solution. Which of the following is not the use of 'X'?

The electronic configurations of four elements A, B, C, D are given below:
(A) 1s22s22p63s1
(B) 1s22s22p63s23p1
(C) 1s22s22p63s2
(D) 1s22s22p63s23p2

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

The sum of bond order values of $ C_2 $ and $ O_2^{2-} $ is $ x $, which is equal to the sum of bond order values of $ a, b, $ and $ c $. What are $ a, b, $ and $ c $?

Match the following

List-I (Molecule)	List-II (Dipole moment in D)
A) $ \text{HCCl} $	I) $ 1.85 \, \text{D} $
B) $ \text{NH}_3 $	II) $ 1.07 \, \text{D} $
C) $ \text{H}_2\text{O} $	III) $ 0.23 \, \text{D} $
D) $ \text{NF}_3 $	IV) $ 1.47 \, \text{D} $

Which of the following sets are correctly matched?

Molecule	Number of lone pairs of electrons on central atom	Hybridization
I) $ \text{PCF}_3 $	1	$ \text{sp}^3 $
II) $ \text{SO}_2 $	2	$ \text{sp}^2 $
III) $ \text{SF}_4 $	2	$ \text{sp}^3d^2 $
IV) $ \text{CF}_4 $	2	$ \text{sp}^3 $

The order of dipole moments of H\textsubscript{2}O (A), CHCl\textsubscript{3} (B) and NH\textsubscript{3} (C) is

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

List-I (Molecule)	List-II (Dipole moment in D)
A) \( \text{HCCl} \)	I) \( 1.85 \, \text{D} \)
B) \( \text{NH}_3 \)	II) \( 1.07 \, \text{D} \)
C) \( \text{H}_2\text{O} \)	III) \( 0.23 \, \text{D} \)
D) \( \text{NF}_3 \)	IV) \( 1.47 \, \text{D} \)

Molecule	Number of lone pairs of electrons on central atom	Hybridization
I) \( \text{PCF}_3 \)	1	\( \text{sp}^3 \)
II) \( \text{SO}_2 \)	2	\( \text{sp}^2 \)
III) \( \text{SF}_4 \)	2	\( \text{sp}^3d^2 \)
IV) \( \text{CF}_4 \)	2	\( \text{sp}^3 \)