AP EAPCET 2025 - 23rd May Morning Shift

In the given reaction sequence, conversion of $X$ to $Y$ is an example of

The structure of the product ' $Z$ ' in the reaction sequence is

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

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

Consider the following
Statement-I Primary structure of protein represents its constitution.
Statement-II $\alpha$-Helix and $\beta$-pleated sheet structure of protein represent tertiary structure of it.
Correct answer is

The sum of bond order values of $\mathrm{C}_2$ and $\mathrm{O}_2^{2+}$ is $x$, which is equal to sum of bond order values of $a, b$ and $c$. What are $a, b$ and $c$ ?

A molecules has T -shape. The total number of electron pairs in the valence shell of central atom of it is

Consider the following gaseous equilibrium reactions (I), (II) and (III) with equilibrium constants $K_1, K_2$ and $K_3$ respectively
(I) $\frac{1}{2} \mathrm{~N}_2+\frac{3}{2} \mathrm{H}_2 \rightleftharpoons \mathrm{NH}_3$
(II) $2 \mathrm{...

$A \rightarrow B$ is a first order reaction. The concentration of $A$ is decreased from $x \mathrm{~mol} \mathrm{~L}^{-1}$ to $y \mathrm{~mol} \mathrm{~L}^{-1}$ in 100 min . What is the average velocity of the reaction in $\mathrm{mol} \mat...

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$$ \begin{array}{llll} \hline & \text { List-I (Drugs) } & & \text { List-II (Effect) } \\ \hline \text { (A) } & \text { Equanil } & \text { (I) } & \text { Hypnotic } \\ \hline \text { (B) } & \text { ...

The sequence of reagents required to convert aniline to benzoic acid is

The reaction of benzene diazonium chloride with Cu and HCl is known as

In which one of the following complexes the metal ion has $t_{2 g}^3 e_g^2$ configuration?

The amphoteric oxide of vanadium ( V ) reacts with alkali and forms an oxo ion ' $X$ ' and with acid forms an oxo ion $Y$. The oxidation states of ' V ' in $X$ and $Y$ are respectively

At 298 K , the following reaction takes place for a cell at the hydrogen electrode
\(\mathrm{H}^{+}(a q)+e^{-} \longrightarrow \frac{1}{2} \mathrm{H}_2 \text { (1 bar) }\)
The solution pH is 10.0 . What is the hydrogen electrode potential...

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Identify the correct set from the following

Which one of the following compounds does not give benzoic acid when treated with alkaline $\mathrm{KMnO}_4$ ?

Which set of elements form electron precise hydrides?

When 30 mL of $0.2 \mathrm{M} \mathrm{NH}_4 \mathrm{OH}$ is added to 30 mL of $2 \mathrm{M} \mathrm{NH}_4 \mathrm{Cl}$ solution. If the pH of the buffer formed is 8.2, what is the $\mathrm{p} K_b$ of $\mathrm{NH}_4 \mathrm{OH}$ ?

IUPAC names of mesityl oxide and oxalic acid are respectively.

At $T(\mathrm{~K})$, the vapour pressure of pure benzene and toluene are 75 and 22 mm Hg respectively. 23.4 g of benzene and 64.4 g of toluene are mixed to form an ideal solution. If the vapours are in equilibrium with the liquid mixture, t...

A solution of urea in water has a boiling point or $100.18^{\circ} \mathrm{C}$. What is the freezing point of the same solution, if $K_f$ and $K_b$ of water are 1.86 and 0.52 K kg $\mathrm{mol}^{-1}$.

Consider the following.
Statement-I In the extraction of Al by Hall-Heroult process, pure $\mathrm{Al}_2 \mathrm{O}_3$ mixed with $\mathrm{Na}_3 \mathrm{AlF}_6$ lowers its melting point and increases conductivity.
Statement-II Zirconium met...

Which of the following is not correct?

Identify the reaction in which diborane is produced on industrial scale?

Electronic configurations of four elements $A, B, C, D$ are given below
(A) $1 s^2 2 s^2 2 p^6 3 s^1$
(B) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^1$
(C) $1 s^2 2 s^2 2 p^6 3 s^2$
(D) $1 s^2 2 s^2 2 p^6 3 s^2 3 p^2$
The correct order of first ionisatio...

Which of the following properties is not correct for silicones?

\(\text { Match the following. }\)
Correct answer is

The element whose percentage composition in an organic compound can be determined by Carius method is

' $x$ ' mg of an organic compound was analysed by Kjeldahl method. The ammonia evolved was absorbed in 50 mL of $0.5 \mathrm{M} \mathrm{H}_2 \mathrm{SO}_4$. The unused acid required 60 mL of 0.5 M NaOH solution for complete neutralisation. ...

Which one of the following acts as autocatalyst during titration of $\mathrm{KMnO}_4$ and oxalic acid in presence of dilute $\mathrm{H}_2 \mathrm{SO}_4$ ?

Which one of the following reactions is not feasible?

The correct order of density of $\mathrm{Be}, \mathrm{Mg}, \mathrm{Ca}, \mathrm{Sr}$ is

The composition of a sample of wustite is $\mathrm{Fe}_{0.93} \mathrm{O}_{1.00}$. Percentage of iron in the form of $\mathrm{Fe}^{3+}$ ion is nearly

At $T(\mathrm{~K})$, hydrogen and oxygen gases are mixed in the ratio of $1: 2$ by mass in a closed vessel of volume ' $V$ ' litres. If the total pressure of gaseous mixture is ' $p$ ' atm, the partial pressure of oxygen (in atm) is

At $27^{\circ} \mathrm{C}$ kinetic energy of 4 g of $\mathrm{H}_2$ is $x \mathrm{~J}$. What is the kinetic energy (in J ) of 6.4 g of oxygen at $127^{\circ} \mathrm{C}$ ?

The adsorption of a gas on a solid surface follows Freundlich adsorption isotherm.
At $T(\mathrm{~K})$, the gas pressure is 2 atm . What is the value of $\frac{x}{m} ?(n=2$ and $k=$ constant $)$

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

At $298 \mathrm{~K}, \Delta_r U^{\ominus}$ and $\Delta_r S^{\ominus}$ for the following reaction are -10.5 kJ and $+44.1 \mathrm{JK}^{-1} ; 2 X(\mathrm{~g})+Y(\mathrm{~g}) \longrightarrow 2 Z(\mathrm{~g})$ What is $\Delta_r G^{\ominus}$ (in...

If the lengths of the tangent, subtangent, normal and subnormal for the curve $y=x^2+x-1$ at the point $(1,1)$ are $a, b, c$ and $d$ respectively, then their increasing order is

If the volume of a sphere is increasing at the rate of 12 c.c. $/ \mathrm{sec}$, then the rate (in $\mathrm{sq} . \mathrm{cm} / \mathrm{sec}$ ) at which its surface area is increasing, when the diameter of the sphere is 12 cm is

If $\frac{1}{2} \leq \frac{x^2+x+a}{x^2-x+a} \leq 2 \forall x \in R$, then $a=$

$P$ and $Q$ are the ends of a diameter of the circle $x^2+y^2=a^2\left(a>\frac{1}{\sqrt{2}}\right) . s$ and $t$ are the lengths of the perpendiculars drawn from $P$ and $Q$ onto the line $x+y=1$ respectively. When the product st is maximum,...

Let $P(x)=x^4+a x^3+b x^2+c x+d$ be such that $x=0$ is the only real root of $P^1(x)=0$. If $P(-1)

The area (in sq. units) of the region bounded by the lines $x=0, x=\frac{\pi}{2}$ and $f(x)=\sin x, g(x)=\cos x$ is

If $-\frac{2}{3} < x < \frac{2}{3}$, then the value of the 5 th term in the expansion of $\frac{1}{\sqrt[3]{2-3 x}}$ when $x=\frac{1}{2}$ is

If the coefficients of $x^{10}$ and $x^{11}$ in the expansion of $\left(1+\alpha x+\beta x^2\right)(1+x)^{11}$ are 396 and 144 respectively, then $\alpha^2+\beta^2=$

If the equation of the polar of the point $(\alpha,-1)$ with respect to the circle $x^2+y^2-4 x-6 y-12=0$ is $y=\beta$, then $4(\alpha+\beta)=$

When the axes are rotated through an angle $\theta$ about origin in anti-clockwise direction and then translated to the new origin $(2,-2)$, if the transformed equation the equation of $x^2+y^2=4$ is $X^2+Y^2+a X+b Y+c=0$ then $a+b+c=$