AP EAPCET 2024 - 20th May Evening Shift

If uncertainty in position and momentum of an electron are equal, then uncertainty in its velocity is

The graph between variation of probability density. $\psi^2(r)$ and distance of the electron from the nucleus, $r$ is shown below. This represents

Which of the following represents simplified version of nucleoside?

What is $X$ in the following reaction?

What are $A$ and $B$ in the following reaction sequence ?\(\mathrm{CH}_3 \mathrm{COOH} \xrightarrow{A} X \xrightarrow[\mathrm{H}^{+}]{Y} B \text { (Analgesic drug) }\)

Observe the following reactions. Identify the reaction in which the hybridisation of underlined atom is changed

Among the following species, correct set of isostructural pairs are $\mathrm{XeO}_3, \mathrm{CO}_3^{2-}, \mathrm{SO}_3, \mathrm{H}_3 \mathrm{O}^{+}, \mathrm{ClF}_3$

At $T(\mathrm{~K})$, the equilibrium constant for the reaction $\mathrm{H}_2(g)+\mathrm{Br}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HBr}(\mathrm{g})$is $1.6 \times 10^5$. If 10 bar of HBr is introduced into a sealed vessel at $T(\mathrm...

At 298 K the value of $-\frac{\Delta\left[\mathrm{Br}^{-}\right]}{\Delta t}$ for the reaction,
$5 \mathrm{Br}^{-}(a q)+\mathrm{BrO}_3^{-}(a q)+6 \mathrm{H}^{+}(a q) \longrightarrow 3 \mathrm{Br}_2(a q)+3 \mathrm{H}_2 \mathrm{O}(l)$ is $X$ ...

Which of the following sweetener use is limited to soft drinks?

What are $X$ and $Y$ respectively in the following reactions?

Arrange the following in the increasing order of number of unpaired electrons present in the central metal ionI. $\left[\mathrm{MnCl}_6\right]^{3-}$II. $\left[\mathrm{FeF}_6\right]^{3-}$III. $\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}$IV....

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The transition metal with highest melting point is

The standard reduction potentials of $2 \mathrm{H}^{+} / \mathrm{H}_2, \mathrm{Cu}^{2+} / \mathrm{Cu}, \mathrm{Zn}^{2+} / \mathrm{Zn}$ and $\mathrm{NO}_3^{-}, \mathrm{H}^{-} / \mathrm{NO}$ are 0.0 , +0.34 . -0.76 and 0.97 V respectively. Ob...

An metal catalyst $(X)$ is used in the catalytic converter of automobiles. This prevents the release of gas $Y$ into the atmosphere. What are $X$ and $Y$ respectively?

Which of the following are general methods for the preparation of 1 -iodopropane?

Which of the following sequence of reagents convert propene to 1-chloropropane?

Styrene on reaction with reagent $X$ gave $Y$ which on hydrolysis followed by oxidation gave $Z . Z$ gives positive 2, 4-DNP test but does not give iodoform test. What are $X$ and $Z$ respectively ?

The product of which of the following reactions undergo hydrolysis by $\mathrm{S}_{\mathrm{N}} 1$ mechanism?

The hydrides of which group elements are examples of electron precise hydrides?

Which of the following will make a basic buffer solution?

Which of the following amino acids possess two chiral centres?

A non- volatile solute is dissolved in water. The $\Delta T_{\mathrm{b}}$ of resultant solution is 0.052 K . What is the freezing point of the solution ( in K )?( $K_b$ of water $=0.52 \mathrm{~K} \mathrm{kgmol}^{-1}$,$K_f$ of water $=1.86 ...

The type of iron obtained from blast furnace in the extraction of iron is

Which of the following are correct?i. Basic structural unit of silicates is $-R_2 \mathrm{SiO}-$ii. Silicones are biocompatibleiii. Producer gas contains CO and $\mathrm{N}_2$The correct option is

Which of the following orders is not correct against the given property?

Which of the following polymerisation leads to the formation of neoprene ?

A mixture of substances $A, B, C, D$ is subjected to column chromatography. The degree of adsorption is the order of $D>B>C>A$. The column is eluted with suitable solvent. Identify the correct statement with respect to separation of mixture

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

The density of $\beta-\mathrm{Fe}$ is $7.6 \mathrm{~g} \mathrm{~cm}^{-3}$. It crystallises in cubic lattice with $\mathrm{a}=290 \mathrm{pm}$. What is the value of $Z$ ? $\left(\mathrm{Fe}=56 \mathrm{~g} \mathrm{~mol}^{-1}: N_{\mathrm{A}}=6...

At STP ' $x$ ' $g$ of a metal hydrogen carbonate $\left(M \mathrm{HCO}_3\right)$ (molar mass $84 \mathrm{~g} \mathrm{~mol}^{-1}$ ) on heating gives $\mathrm{CO}_2$, which can completely react with 0.2 moles of MOH (molar mass $40 \mathrm{~g...

The mass % of urea solution is 6 . The total weight of the solution is 1000 g . What is its concentration in $\mathrm{mol} \mathrm{L}^{-1}$ ? (Density of water $=1.0 \mathrm{~g} \mathrm{~mL}^{-1}$ )( $\mathrm{C}=12 \mathrm{u}, \mathrm{N}=14...

$\mathrm{Xe}(g)+2 \mathrm{~F}_2(g) \xrightarrow[7 \text { bar }]{873 \mathrm{~K}} \mathrm{XeF}_4(\mathrm{~s})$The ratio of $\mathrm{Xe}: \mathrm{F}_2$ required in the above reaction is

What is the kinetic energy (in $\mathrm{J} \mathrm{mol}^{-1}$ ) of one mole of an ideal gas (molar mass $=0.1 \mathrm{~kg} \mathrm{~mol}^{-1}$ ) if its rms velocity is $4 \times 10^2 \mathrm{~ms}^{-1}$ at $T(\mathrm{~K})$ ?

Which of the following general reaction is an example for heterogeneous catalysis?

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What is the ratio of kinetic energies of 3 g of hydrogen and 4 g of oxygen at a certain temperature?

The volume of an ideal gas contracts from 10.0 L to 2.0 L under an applied pressure of 2.0 atm . During contraction the system also evolved 900 J of heat. The change in internal energy (in J ) involved in the system is ( $1 \mathrm{~L} \mat...

The molar heat of fusion and vaporisation of benzene are 10.9 and $31.0 \mathrm{~kJ} \mathrm{~mol}^{-1}$ respectively. The changes in entropy for the solid $\rightarrow$ liquid and liquid $\rightarrow$ vapour trasitions for benzene are $x$ ...

The length of the subnormal at any point on the curve $y=\left(\frac{x}{2024}\right)^k$ is constant, if the value of $k$ is

The acute angle between the curves $x^2+y^2=x+y$ and $x^2+y^2=2 y$ is

$p_1$ and $p_2$ are the perpendicular distances from the origin to the tangent and normal drawn at any point on the curve $x^{\frac{2}{3}}+y^{\frac{2}{3}}=a^{\frac{2}{3}}$ respectively. If $k_1 p_1^2+k_2 p_2^2=a^2$, then $k_1+k_2=$

Equation of a tagent line of the parabola $y^2=8 x$, which passes through the point $(1,3)$ is

A' value of $C$ according to the Lagrange's mean value theorem for $f(x)=(x-1)(x-2)(x-3)$ in $[0,4]$ is

If the coefficients of $x^5$ and $x^6$ are equal in the expansion of $\left(a+\frac{x}{5}\right)^{65}$, then the coefficient of $x^2$ in the expansion of $\left(a+\frac{x}{5}\right)^4$ is.

If $|x|<\frac{2}{3}$, then the 4th term in the expansion of $(3 x-2)^{\frac{2}{3}}$ is :

The radical centre of the circles $x^2+y^2+2 x+3 y+1=0$, $x^2+y^2+x-y+3=0, x^2+y^2-3 x+2 y+5=0$

The largest among the distances from the point $P(15,9)$ to the points on the circle $x^2+y^2-6 x-8 y-11=0$ is

The equation of the circle whose diameter is the common chord of the circles $x^2+y^2-6 x-7=0$ and $x^2+y^2-10 x+16=0$ is