List of top Questions asked in AP EAPCET- 2026

Choose the correct statements among the following
A) Bacteria flagella can shorten itself once in contact with other bacterium.
B) Griffith experiments revealed the DNA as genetic material.
C) Spirochetes are slender, long and flexible.
D) Chemoheterotrophs derive only carbon from organic compounds.
Consider the following statements:
I. Supply of alternative resources to industries, in the form of starch, fuels and pharmaceuticals-Biopiracy
II. Usage of plants as bioreactors for obtaining products like specialized medicines, chemicals and antibiotics-Molecular farming
III. Increase food production and reduction in usage of chemical fertilizer and pesticides-Gene revolution
IV. Transfer of new genes into wild species through natural out crossing-Gene pollution
Identify correct statements
Choose the correct essentiality criteria for mineral element
A) Deficiency of any element can be met by supplying some other element
B) Element must be involved in the metabolism of the plant
C) Plant do not complete their life cycle without the element
D) Few elements have been found to be absolutely essential for growth of the plant
Match the following lists
Assertion (A): The loss or gain of a segment of DNA results in alteration of chromosomes.
Reason (R): Genes are known to be located on chromosomes alteration leads to aberrations.
A DNA strand has a length with 12 full turns. Then identify the number of Nitrogen bases in total
For a reaction, the rate constant double when temperature is increased from 300 K to 310 K. The activation energy ($E_{a}$) of this reaction is (Take $R = 8.314\text{ J K}^{-1}\text{ mol}^{-1}$)
In the Arrhenius equation, $\exp\left(-\frac{E_{a}}{RT}\right)$, is equal to
Identify the correct pair of species having same number of valency electrons
An aqueous solution of a non-volatile and non-electrolytic solute boils at $100.5^{\circ}C.$ What will be the freezing point of the same solution? (Given $K_{b}=0.512~K$ kg $mol^{-1}$ and $K_{f}=1.86~K$ kg mol$^{-1}$)
Which of the following compounds will exhibit geometrical isomerism?

Which of the following compounds will show geometrical isomerism?  I. $(CH_{3})_{2}C=CH~C_{2}H_{5}$  II. $C_{6}H_{5}CH=CH~C_{2}H_{5}$  III. $C_{6}H_{5}CH=CH_{2}$  IV. $CH_{3}CH=C(Cl)CH_{3}$  The correct answer is:

The conjugate base of $\text{H}_{2}\text{PO}_{4}^{-}$ is
For the reaction $2HI(g)\rightleftharpoons H_{2}(g)+I_{2}(g)$, the correct expression relating the degree of dissociation ($\alpha$) of HI and equilibrium constant $K_{p}$ is
Total number of electrons involved in the formation of bridge bonds in the structure of diborane is
Consider the following reactions I, II and III. The correct order of reactivity of X, Y and Z towards $S_{N}1$ reaction is:

Identify the sets which contain greenhouse gases only:  I. $CO_{2}$, $SO_{3}$, $N_{2}$  II. $CO_{2}$, $CH_{4}$, $O_{3}$  III. $O_{2}$, $NO_{2}$, $SO_{2}$  IV. $O_{3}$, CFCs, $N_{2}O$  The correct answer is:

Which of the following structures represent an example of a tranquilizer?

Which one of the carbonates is unstable in air and is kept in $CO_{2}$ atmosphere to avoid decomposition?
The ore calamine on calcination gives its oxide X. The common name of X is
The temporary hardness of water is due to the presence of
The energy of spectral line of lowest frequency in Lyman series of $Li^{2+}$ spectrum is x J. The energy of second spectral line in Balmer series of $He^{+}$ spectrum is y J. The ratio of x and y is
What are X and Y respectively in the following set of reactions?
A metal X of atomic mass 75 u forms a cubic lattice of edge length 5 Å. If the density of the lattice is 2 g cm$^{-3}$, the radius (in Å) of the metal atom is ($N=6\times10^{23} \text{ mol}^{-1}$)
At $T(K)$ adsorption of acetic acid on 1g of charcoal gave a Freundlich adsorption isotherm with slope of 0.5 and intercept of 1. What is the value of x, when the concentration of acetic acid is 0.1 mol $L^{-1}$? (Given: $\text{antilog}(0.5) [cite_start]= 3.162$; $\text{antilog}(0.301) = 2.0$)