TG EAPCET 2024 (Online) 9th May Morning Shift

Assertion (A) : Chlorobenzene is not formed in the reaction of phenol with thionyl chloride.
Reason (R) : In phenol, carbon - oxygen bond has partial double bond character.
The correct answer is :

An alcohol $X\left(\mathrm{C}_3 \mathrm{H}_{12} \mathrm{O}\right)$ when reacted with conc. HCl and anhydrous $\mathrm{ZnCl}_2$ produces turbidity instantly. The alcohol $X$ can be prepared from which of the following reactions?

Which one of the following corresponds to the wavelength of line spectrum of H atom in its Balmer series ? ( $R=$ Rydberg constant)

Identify the pair of species having same energy from the following. (The number given in the bracket corresponds to principal quantum number ( $n$ ) in which the electron is present.)

The functional groups involved in the conversion of glucose to gluconic acid and gluconic acid to saccharic acid respectively are

Consider the following pairs.
$$ \begin{array}{l|l|l} \hline & \text { Order } & \text { Property } \\ \hline \text { (A) } & \mathrm{NO}_2>\mathrm{O}_3>\mathrm{H}_2 \mathrm{O} & \text { Bond angle } \\ \hline \text { (B) } & \mathrm{HF}>\m...

According to Fajan's rules, which of the following is not correct about covalent character?

At $T(\mathrm{~K}), K_c$ for the reaction, $A O_2(g)+B \mathrm{O}_2(g) \rightleftharpoons A \mathrm{O}_3(g)+B \mathrm{O}(g)$ is 16 . One mole each of reactants and products are taken in a IL flask and heated to $T(\mathrm{~K})$, and equilib...

For a first order reaction, a plot of $\ln k\left(Y\right.$-axis) and $\frac{1}{T}$ $(X$-axis) gave the straight line with slope equal to $-10^3 \mathrm{~K}$ and intercept equal to 2.303 ( on $Y$-axis). What is the activation energy ( $E_a$...

Among the following the incorrect statement about chloramphenicol is

The correct statement(s) of the following is/are (A) Aniline forms a stable benzene diazonium chloride at 285 K . (B) N - phenylethanamide is less reactive towards nitration than aniline. (C) $p-\mathrm{CH}_3 \mathrm{C}_6 \mathrm{H}_4 \math...

The $\mathrm{p} K_{\mathrm{a}}$ values of $X, Y, Z$ respectively are $8.3,7.1,10.2$. What are $X, Y, Z$ ?

The reagents/ chemicals $X$ and $Y$ that convert cyanobenzene to Schiff's base are

The molecular formula of a coordinate complex is $\mathrm{CoH}_{12} \mathrm{O}_6 \mathrm{Cl}_3$. When one mole of this aqueous solution of complex is reacted with excess of aqueous $\mathrm{AgNO}_3$ solution, three moles of AgCl was formed....

Identify the element for which +1 oxidation state is more stable than +3 oxidation state.

Identify the correct statements from the following.
(i) Ti (IV) is more stable than Ti (III) and Ti (II).
(ii) Among $3 d$-series elements (From $Z=22$ to 29). Only copper has positive reduction potential $\left(M^{2+} / M\right)$.
(iii)...

Identify the correct statements from the following
(A) At 298 K , the potential of hydrogen electrotle placed in a solution of $\mathrm{pH}=10$, is -0.59 V
(B) The limiting molar conductivity of $\mathrm{Ca}^{2+}$ and $\mathrm{Cl}^{-}$is 1...

The common components of photochemical smog are

The number of activating and deactivating groups of the following are respectively $$ \begin{aligned} & -\mathrm{OCH}_2 \mathrm{CH}_3,-\mathrm{COCH}_3,-\mathrm{NHCOCH}_3, \\ & -\mathrm{COOCH}_3, \mathrm{SO}_3 \mathrm{H} \end{aligned} $$

The electron displacement effect observed in the given structures is known as

A halogen compound $X\left(\mathrm{C}_4 \mathrm{H}_9 \mathrm{Br}\right)$ on hydrolysis gave alcohol $Y$. The alcohol $Y$ undergoes dehydration with $20 \% \mathrm{H}_3 \mathrm{PO}_4$ at 358 K . What is $X$ ?

An alkene $X\left(\mathrm{C}_4 \mathrm{H}_8\right)$ exhibits geometrical isomerism. Oxidation of $A$ with $\mathrm{KMnO}_4 / \mathrm{H}^{+}$gave $Y$. On heating sodium salt of $Y$ with a mixture of NaOH and CaO gave $Z$. What is $Z$ ?

$X$ and $Z$ respectively in the following reaction sequence are $\mathrm{C}_3 \mathrm{H}_6 \xrightarrow{X} Y \xrightarrow[\mathrm{AlCl}_3]{\mathrm{C}_6 \mathrm{H}_6} Z$ (Major projuct)

Distilled water boils at 373.15 K and freezes at 273.15 K . A solution of glucose in distilled water boils at 373.202 K . What is the freezing point (in K ) of the same solution? (For water, $K_b=0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^...

A low boiling point metal contains high boiling point metal as impurity. The correct refining method is

"Observe the following reaction. This reaction represents

\(4 \mathrm{HCl}+\mathrm{O}_2 \xrightarrow[723 \mathrm{~K}]{\mathrm{CuCl}_2} 2 \mathrm{Cl}_2+2 \mathrm{H}_2 \mathrm{O}\)"

Identify the set which is not correctly matched in the following.

Which of the following when subjected to thermal decomposition will liberate dinitrogen ?
(i) Sodium nitrate
(ii) Ammonium dichromate
(iii) Barium azide

Observe the oxides $\mathrm{CO}, \mathrm{B}_2 \mathrm{O}_3, \mathrm{SiO}_2, \mathrm{CO}_2, \mathrm{Al}_2 \mathrm{O}_3$. $\mathrm{PbO}_2, \mathrm{Tl}_2 \mathrm{O}_3$. The number of acidic oxides in the list is

Which of the following has the least electron gain enthalpy?

Identify the pair of element in which the number of $s$-electrons to $p$-electrons ratio is $2: 3$

Match the following.






List-I (Monomer/s)

List-II (Name of polymer)







A. CF₂$=$CF₂

I. Neoprene





B. NH₂(CH₂)₆NH₂, HO₂C(CH₂)₄CO₂H

II. Bakelite





C....

Observe the following reactions. $$ \begin{aligned} & \text { I. } \mathrm{H}_2 \mathrm{O}(l)+2 \mathrm{Na}(s) \longrightarrow 2 \mathrm{NaOH}(a q)+\mathrm{H}_2(g) \\\\ & \text { II. } 2 \mathrm{H}_2 \mathrm{O}(l)+2 \mathrm{~F}_2(g) \longri...

What is the correct stability order of $\mathrm{KO}_2, \mathrm{RbO}_2, \mathrm{CsO}_2$ ?

Assertion (A) $\mathrm{MgO}, \mathrm{CaO}, \mathrm{SrO}$ and BaO are insoluble in water.
Reason ( R ) In aqueous medium the basic strength of $\mathrm{MgO}, \mathrm{CaO}, \mathrm{SrO}$ and BaO increases with increase in the atomic number o...

The molecular formula of a compound is $A B_2 \mathrm{O}_4$. Atoms of $O$ form ccp lattice. Atoms of $A$ (cation) occupy $\frac{1}{8}$ th of tetrahedral voids. Atoms of $B$ (cation) occupy a fraction of octahedral voids. What is the fractio...

12 g of an element reacts with 32 g of oxygen. What is the equivalent weight of the element ?

An open vessel containing air was heated from $27^{\circ} \mathrm{C}$ to $727^{\circ} \mathrm{C}$. Some air was expelled. What is the fraction of air remaining in the vessel ? (Assume air as an ideal gas.)

Adsorption of a gas ( $A$ ) on an adsorbent follows Freundlich adsorption isotherm. The slope and intercept (on $Y$-axis) of the isotherm are $0: 5$ and 1.0 respectively. What is the value of $\frac{x}{m}$, when the pressure of the gas $(A)...

The standard enthalpy of formation $\left(\Delta_f H^{\varphi}\right)$ of ammonia is $-46.2 \mathrm{~kJ} \mathrm{~mol}^{-1}$, What is the $\Delta_{,} H^{\ominus}$ of the following reaction? $$
\mathrm{N}_2(g)+3 \mathrm{H}_2(g) \longrightarr...

The radius of a sphere is 7 cm . If an error of 0.08 sq cm is made in measuring it, then the approximate error (in cubic cm ) found in its volume is

If the slope of the tangent drawn at any point $(x, y)$ on the curve $y=f(x)$ is $\left(6 x^2+10 x-9\right)$ and $f(2)=0$, then $f(-2)=$

If the interval in which the real valued function $f(x)=\log \left(\frac{1+x}{1-x}\right)-2 x-\frac{x^3}{1-x^2}$ is decreasing in $(a, b)$, where $|b-a|$ is maximum, then $\frac{a}{b}=$

The curve $y=x^3-2 x^2+3 x-4$ intersects the horizontal line $y=-2$ at the point $P(h, k)$. If the tangent drawn to this curve at $P$ meets the $X$-axis at $\left(x_1, y_1\right)$, then $x_1=$

If $f(x)=(2 x-1)(3 x+2)(4 x-3)$ is a real valued function defined on $\left[\frac{1}{2}, \frac{3}{4}\right]$, then the value(s) of $c$ as defined in the statement of Rolle's theorem

Area of the region enclosed between the curves $y^2=4(x+7)$ and $y^2=5(2-x)$ is

For $n \in N$ the largest positive integer that divides $81^n+20 n-1$ is $k$. If $S$ is the sum of all positive divisors of $k$, then $S-k=$

If $(1,1),(-2,2)$ and $(2,-2)$ are 3 points on a circle $S$, then the perpendicular distance from the centre of the circle $S$ to the line $3 x-4 y+1=0$ is

The centroid of a variable $\triangle A B C$ is at the distance of 5 units from the origin. If $A=(2,3)$ and $B=(3,2)$, then the locus of $C$ is

If the line $4 x-3 y+p=0(p+3>0)$ touches the circle $x^2+y^2-4 x+6 y+4=0$ at the point $(h, k)$, then $h-2 k=$