AP EAPCET 2024 - 22th May Evening Shift

What is the major product ' $Z$ ' in the following reaction sequence?

The de-Broglie wavelength of an electron with kinetic energy of 2.5 eV is (in m$)\left(1 \mathrm{eV}=1.6 \times 10^{-19} \mathrm{~J}\right.$, $m_e=9 \times 10^{-31} \mathrm{~kg}$ )

The ratio of ground state energy of $\mathrm{Li}^{2+}, \mathrm{He}^{+}, \mathrm{H}$ is

The number of -OH groups in open chain and ring structures of D-glucose are respectively

Assertion (A) : Carboxylic acids are more acidic than phenols
Reason (R) : Resonance structures of carboxylate ion are equivalent, while resonance structures of phenoxide ion are not equivalent.

Consider the following reactions
$Y$ can not be obtained from which of the following reaction?

In the reaction sequence $Y$ is
\(\mathrm{CH}_3 \mathrm{CO}_2 \mathrm{H} \xrightarrow[(2) \Delta]{(1) \mathrm{NH}_3} P \xrightarrow{\mathrm{Br} / \mathrm{NaOH}} Y\)

Species $A, B, C, D$ formed in the following bond cleavages respectively are

The shape of colourless neutral gas formed on thermal decomposition of ammonium nitrate is

The basicity of $\mathrm{H}_3 \mathrm{PO}_2, \mathrm{H}_3 \mathrm{PO}_3 \cdot \mathrm{H}_3 \mathrm{PO}_4$ respectively is

The number of lone pairs of electrons on the central atom of $\mathrm{BrF}_5, \mathrm{XeO}_3, \mathrm{SO}_2$ respectively are

The rate constant of a first order reaction was doubled when the temperature was increased from 300 to 310 K . What is its approximate activation energy (in $\mathrm{kJ} \mathrm{mol}^{-1}$ )? ( $R=8.3 \mathrm{Jmol}^{-1} \mathrm{~K}^{-1}: \l...

Which of the following is not correctly matched?

Which of the following solutions is used in the styptic action which prevents bleeding of blood?

Which complex among the follwing is most paramagnetic?

Consider the cell reaction at 300 K .
\(A(s)+B^{2+}(a q) \rightleftharpoons A^{2+}(a q)+B(s)\)
Its $E^{\ominus}$ is 1.0 V . The $\Delta_r H^{\ominus}$ of the reaction is $-163 \mathrm{kJmol}^{-1}$.
What is $\Delta_r s^{\ominus}$ (in $\mat...

Match the pollutant is List I with its maximum permissible limit in drinking water given in List II


.tg {border-collapse:collapse;border-spacing:0;}

.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-s...

Which of the following is not an example of allylic halide?

Conversion of $X$ to $Y$ is an example of

What are $X$ and $Y$ respectively in the following reaction sequence?

In which of the following reactions, hydrogen is oned the products?
I. $\mathrm{NaBH}_4+\mathrm{I}_2 \longrightarrow$
II. $\mathrm{BF}_3+\mathrm{NaH} \xrightarrow{450 \mathrm{~K}}$
III. $\mathrm{BF}_3+\mathrm{LiAlH}_4 \longrightarrow$
IV. $...

100 mL of $0.1 \mathrm{M} \mathrm{H} A$ (weak acid) and 100 mL of 0.2 M $\mathrm{Na} A$ are mixed. What is the pH of resultant solution? ( $K_{\mathrm{a}}$ of $\mathrm{H} A$ is $10^{-5}: \log 2=0.3$ )

At $300 \mathrm{~K}, 6 \mathrm{~g}$ of urea was dissolved in 500 mL of water. What is the osmotic pressure (in atm) of resultant solution?
$$ \begin{aligned} & \left(R=0.082 \mathrm{~L}^{\operatorname{atm~K}}{ }^{-1} \mathrm{~mol}^{-1}\righ...

In water, which of the following gases has the highest Henry's law constant at 293 K ?

At 290 K , a vessel (I) contains equal moles of three liquids $(A, B, C)$. The boiling points of $A, B$ and $C$ are $350 \mathrm{~K}, 373 \mathrm{~K}$ and 308 K respectively. Vessel (I) is heated to 300 K and vapours were collected into ves...

Two statements are given below.
Statement I : $\mathrm{SnF}_4, \mathrm{PbF}_4$ are ionic in nature.
Statement II : GeCl ${ }_2$ is more stable than $\mathrm{GeCl}_4$
The correct answer is

Two statements are given below.
Statement I : Nitrogen has more ionisation enthalpy and electronegativity than beryllium.
Statement II : $\mathrm{CrO}_3, \mathrm{~B}_2 \mathrm{O}_3$ are acidic oxide.
Correct answer is

Which of the following is correct statement?

Polymers that can be softened on heating and hardened on cooling are called

Which of the following reactions of $\mathrm{KMnO}_4$ occurs in acidic medium ?

100 mL of $0.1 \mathrm{M} \mathrm{Fe}^{2+}$ solution was titrated with $\frac{1}{60} \mathrm{M}$ $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ solution in acid medium. What is the volume (in L ) of $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ solution consumed ?

Which one of the following alkali metals is the weakes reducing agent as per their $E^{\circ}$ values?

A compound is formed by atoms of $A, B$ and $C$. Atoms of $C$ form hcp lattice. Atoms of $A$ occupy $50 \%$ of octahedral voids and atoms of $B$ occupy $2 / 3$ rd of tetrahedral voids. What is the molecular formula of the solid?

Identify the correct statements from the following.
I. Reaction of hydrogen with fluorine occurs even in dark.
II. Manufacture of ammonia by Haber process is an endothermic reaction.
III. HF is electron rich hydride.

A vessel of volume $V \mathrm{~L}$ contains an ideal gas are $T(\mathrm{~K})$. The vessel is partitioned into two equal parts. The volume (in L ) and temperature (in K ) in each part is respectively.

At $T(\mathrm{~K})$ for one mole of an ideal gas, the graph of $p$ (on $Y$-axis) and $V^{-1}$ (on $X$-axis) gave a straight line with slope of $32.8 \mathrm{~L} \mathrm{~atm} \mathrm{~mol}^{-1}$. What is the temperature (in K$) ?\left(R=0.0...

' $A$ ' is a protecting colloid. The following data is obtained for preventing the coagulation of 10 mL of gold sol to which 1 mL of $10 \% \mathrm{NaCl}$ is added. What is the gold number of ' $A$ '?

.tg {border-collapse:collapse;border-...

At $300 \mathrm{~K}, \Delta_r G^{\Theta}$ for the reaction $A_2(g) \rightleftharpoons B_2(g)$ is $-11.5 \mathrm{~kJ} \mathrm{~mol}^{-1}$. The Equilibrium constant at 300 K is approximately ( $R=8314 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K...

Observe the following reaction.

\(A B \mathrm{O}_3(\mathrm{~s}) \xrightarrow{1000 \mathrm{~K}} A \mathrm{O}(\mathrm{~s})+B \mathrm{O}_2(\mathrm{~g})\)
$\Delta_r H$ for this reaction is $x \mathrm{~kJ} \mathrm{~mol}^{-1}$. What is its $\...

Two statements are given below.
Statement I : The reaction $\mathrm{Cr}_2 \mathrm{O}_3+2 \mathrm{Al} \longrightarrow \mathrm{Al}_2 \mathrm{O}_3+2 \mathrm{Cr}$ $\left(\Delta G^{\ominus}=-421 \mathrm{~kJ}\right)$ is thermodynamically feasible...

If the curves $2 x^2+k y^2=30$ and $3 y^2=28 x$ cut each other orthogonally, then $k$ is equal to

If a man of height 1.8 mt , is walking away from the foot of a light pole of height 6 mt , with a speed of 7 km per hour on a straight horizontal road opposite to the pole, then the rate of change of the length of his shadow is (in kmph )

The interval containing all the real values of $x$ such that the real valued function $f(x)=\sqrt{x}+\frac{1}{\sqrt{x}}$ is strictly increasing is

The semi-vertical angle of a right circular cone is $45^{\circ} \%$ If the radius of the base of the cone is measured as 14 cm with an error of $\left(\frac{\sqrt{2}-1}{11}\right) \mathrm{cm}$, then the approximate error in measuring its to...

If the coefficients of $r$ th, $(r+1)$ th and $(r+2)$ th terms in the expansion of $(1+x)^n$ are in the ratio of $4: 15: 42$, then $n-r$ is equal to

If $P$ is the greatest divisor of $49^n+16 n-1$ for all $n \in N$, then the number of factors of $P$ is

If the coefficients of $(2 r+6)$ th and $(r-1)$ th terms in the expansion of $(1+x)^{21}$ are equal, then the value of $r$ is equal to

If the axes are rotated through angle ' $\alpha$ ', then the number of values of a such that the transformed equation of $x^2+y^2+2 x+2 y-5=0$ contains no liner terms is

The locus of the point of intersection of perpendicular tangents drawn to the circle $x^2+y^2=10$ is

Angle between the circles $x^2+y^2-4 x-6 y-3=0$ and $x^2+y^2+8 x-4 y+11=0$ is