TS EAMCET 2023 (Online) 12th May Morning Shift

What are the products $X$ and $Y$ respectively in the reactions I and II?

Phenol is mainly manufactured from a compound $X$ by subjecting it to oxidation in air followed by treating with dilute acid. Identify the compound $X$.

Consider the following reaction sequence
The correct statements about $Z$ are
I. It gives yellow precipitate with $\mathrm{I}_2$ and NaOH solution.
II. It undergoes disproportionation reaction in the presence of concentrated NaOH solution.
...

Identify $A$ and $B$ from the following reactions

The radius of third orbit of hydrogen atom is $R \mathrm{pm}$. The radius of second orbit of $\mathrm{He}^{+}$ion (in pm is)

The threshold frequency of a metal is $10^{15} \mathrm{~s}^{-1}$. The ratio of maximum kinetic energies of the photoelectrons, when the metal is made to strike with radiations of frequencies $1.5 \times 10^{15} \mathrm{~s}^{-1}$ and $2.0 \t...

Which of the following is the incorrect statement about maltose?

Table
Match the following.
The correct answer is

In which of the following set of molecules the hybridisation of central atoms is different?

\(\underset{(1: 20)}{\mathrm{Xe}(g)+\mathrm{F}_2(\mathrm{~g}) \xrightarrow[60-70 \text { bar }]{573 \mathrm{~K}} X(\mathrm{~s})}\)


$$
X+\mathrm{H}_2 \mathrm{O} \longrightarrow Y+\mathrm{HF}, X+3 \mathrm{H}_2 \mathrm{O} \longrightarrow \...

If benzene diazonium chloride undergoes first order decomposition at $T(\mathrm{~K})$ with a rate constant of $6.93 \times 10^{-2} \mathrm{~min}^{-1}$, the time for completion of $90 \%$ of the reaction (in min ) is (nearest integer) $(\log...

Which of the following is not correctly matched?

Identify the product ' $Y$ ' in the following sequence of reactions

Conversion of $A$ to $B$ is an example of the reaction

Match the following.The correct answer is Table

The number $f$-electrons in +3 oxidation state of gadolinium $(Z=64)$ is $x$ and in +2 oxidation state of ytterbium $(Z=70)$ is $y$. The sum of $x$ and $y$ is

The electrode potential of chlorine electrode is maximum, when the concentration of chloride ion in the solution (in $\mathrm{mol} \mathrm{L}^{-1}$ ) is $X$. What is the value of $X$ ?

In which of the following hyperconjugation is not possible?

Which of the following is least reactive towards $\mathrm{S}_{\mathrm{N}} 2$ reaction?

Identify the major product $B$ in the given sequence of reactions.

The functional groups in $X$ and $Y$ are respectively.

Consider the following statements about the hydrides.
(I) Sodium hydride with water liberates oxygen gas.
(II) Methane, silane are examples of electron precise hydrides.
(III) Ammonia and water molecules are examples of electron deficient h...

Match the following.

The correct answer is

A solution is prepared by mixing 10 mL of 1.0 M acetic acid and 20 mL of 0.5 M sodium acetate and diluted to 100 mL . If the $\mathrm{p} K_a$ of acetic acid is 4.76, then the pH of the solution is

The correct IUPAC name of the compound given under is

The vapour pressure of a pure liquid $A$ is 70 torr at 300 K . It forms an ideal solution with another liquid $B$. The mole fraction of $B$ is 0.2 and total vapour pressure of the solution is 84 torr at the same temperature. The vapour pres...

Sphalerite, siderite and malachite are the ores of metals $X, Y$ and $Z$. The atomic numbers of them are respectively

What are the correct statements about the elements of group 13 given below?
(I) The stability of +1 oxidation state follows the order $\mathrm{Tl}>\mathrm{In}>\mathrm{Ga}$.
(II) Boron has the lowest melting point and boiling point as it is ...

Consider the reaction,
\(\mathrm{P}_4+3 \mathrm{NaOH}+3 \mathrm{H}_2 \mathrm{O} \longrightarrow Q+3 \mathrm{NaH}_2 \mathrm{PO}_2\)
Identify the reaction in which $Q$ is not the product. (equations are not balanced)

The nitrate of which of the following metals does mot liberate $\mathrm{NO}_2$ gas on heating?

The oxidation state of sulphur atoms and numbers of $\mathrm{S}-\mathrm{OH}$ bonds in peroxydisulphuric acid are respectively

Consider the following.
(I) The order of first ionisation enthalpy of first three elements of 3rd period is $\mathrm{Mg}>\mathrm{Al}>\mathrm{Na}$.
(II) The element with electronegativity of 3.5 is chlorine.
(III) The order of sizes of ions ...

Identify the correct statements from the following.
(I) Au is soluble in aqua regia but not Pt .
(II) Among the oxoacids of chlorine highest oxidation state possible for chlorine is +7 .
(III) Among the hydrogen halides lowest boiling point...

Amongst the following, how many of them come under the category of elastomers?
Natural rubber, polyethene, vulcanized rubber, bakelite, polyvinylchloride, buna-N, nylon-6, neoprene

The equivalent weight of which of the following is maximum?
(Given : atomic weights $\mathrm{Na}=23, \mathrm{Mn}=55$,

\(\mathrm{Cr}=52, \mathrm{~K}=39, \mathrm{O}=16, \mathrm{C}=12)\)

Assertion (A) Graphite is used as a dry lubricant in machines which run at high temperatures.
Reason ( $\mathbf{R}$ ) The layers of graphite slip one over the other when pressure is applied.
The correct option among the following is

At $T(\mathrm{~K})$, copper (atomic mass $=63.5 \mathrm{u}$ ) has fce structure with an edge length of $x \AA$. The density of copper (in $\mathrm{g} \mathrm{cm}^{-3}$ ) at that temperature approximately is $\left(N_A=6.0 \times 10^{23} \ma...

At 300 K and 760 torr pressure, the density of a mixture of He and $\mathrm{O}_2$ gases is $0.543 \mathrm{gL}^{-1}$. The mass percent of oxygen approximately is

$$
\left(R=0.0821 \mathrm{~L} \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1...

Identify the factors which favour the physical adsorption from the following
(I) High surface area
(II) Low temperatures
(III) High temperatures
(IV) Low pressures
(V) High pressures

If 2.5 moles of an ideal gas at a certain temperature are allowed to expand isothermally and reversibly from an initial volume of $2 \mathrm{dm}^3$ to $20 \mathrm{dm}^3$, the work done by the gas is -16.5 kJ . The temperature (in K ) of the...