AP EAPCET 2024 - 22th May Morning Shift

An organic compound $(X)$ has an empirical formula $\mathrm{C}_4 \mathrm{H}_8 \mathrm{O}$. This gives a pale yellow precipitate with iodine in NaOH solution. What is $X$ ?

If the longest wavelength of spectral line of Paschen series of $\mathrm{Li}^{2+}$ ion spectrum is $x \mathop {\rm{A}}\limits^{\rm{o}}$. Then the longest wavelength (in $\mathop {\rm{A}}\limits^{\rm{o}}$ ) of Lyman series of hydrogen spectr...

If $v_0$ is the threshold frequency of a metal $X$, the correct relation between de-Broglie wavelength $(\lambda)$ associated with photoelectron and frequency $(v)$ of the incident radiation is

\(\text { Match List-I with List-II }\)


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Which of the following is not an essential amino acid ?

Which one of the following is NOT a disaccharide?

Which of the following molecules contain sulphur atom in their structures?
I. Morphine
II. Heroin
III, Penicillin
IV. Terpineol
V. Cimetidine

In which of the following, there is no change in hybridisation of the central atom ?

In which of the following sets the sum of bond orders of three species is maximum ?

\(\text { In the given structure of diborane } \theta_1, \theta_2 \text { are respectively }\)

At equilibrium of the reaction,
\(A_2(g)+B_2(g) \rightleftharpoons 2 A B(g)\)
The concentrations of $A_2, B_2$ and $A B$ respectively are $15 \times 10^{-3} \mathrm{M}, 2.1 \times 10^{-3} \mathrm{M}$, and $1.4 \times 10^{-3} \mathrm{M}$ i...

Isomerisation of gaseous cyclobutene to butadiene is first order reaction. At $T(\mathrm{~K})$. The rate constant of reaction is $33 \times 10^{-4} \mathrm{~s}^{-1}$. What is the time required (in min ) to complete $90 \%$ of this reaction ...

\(\text { Identify } B \text { in the given reaction sequence. }\)

\(\text { What is } Y \text { in the given sequence? }\)

Match the complexes in List-I with their hybridisation in list-II.


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The correct order of oxidising power of the given ions is

In which of the following Galvanic cells emf is maximum?

(Given, $E_{\mathrm{Mg}^{2+} \mid \mathrm{Mg}}^{\circ}=-2.36 \mathrm{~V}$
and $E_{\mathrm{Cl}_2 \mid 2 \mathrm{Cl}^{-}}^{\circ}=+136 \mathrm{~V}$ )

Which of the following is/are estimated by tura polluted water with potassium dichromate solution in acidic medium?
$$ \begin{array}{c|c|c} \hline \text { COD } & \text { BOD } & \text { DO } \\ \hline \text { I } & \text { II } & \text { I...

Arrange the following in the correct order of their acidic strength.

\(\text { The product }(C) \text { in the following reaction sequenceis }\)

In Kolbe's electrolysis of sodium propanoate, products formed at anode and cathode are respectively

In Wurtz-Fittig reaction a compound $X$ reacts with alkyl halide. What is $X$ ?

Identify the incorrect statement.

Which of the following when added to 20 mL of a 0.01 M solution of HCl would decrease its pH ?

The number of isomers possible for a dibromo derivate (Molecular weight $=186 \mathrm{u}$ ) of an alkene is $(\mathrm{Br}=80 \mathrm{u}$ )

Benzoic acid undergoes dimerisation in benzene. $x \mathrm{~g}$ of benzoic acid (molar mass $122 \mathrm{~g} \mathrm{~mol}^{-1}$ ) is dissolved in 49 g of benzene. The depression in freezing point is 1.12 K . If degree of association of ac...

At $T(\mathrm{~K})$ two liquids $A$ and $B$ form an ideal solution. The vapour pressures of pure liquid $A$ and $B$ at that temperature are 400 and 600 mm Hg respectively, If the mole fraction of liquid $B$ is 0.3 in the mixture, the mole f...

In which of the following metals extraction, impurities are removed as slag?
i. Al
ii. Fe
iii. Cu
iv. Zn
The correct option is

In which of the following sets allotropes of carbon are correctly matched with their uses?
i. Graphite - Crucibles
ii. Activated charcoal - Water filters
iii. Carbon black - Fuel
The correct answer is

Two of the products formed by the reaction of ' $X$ with HCl are gases. What is ' $X$ '?

In which of the following sets, elements are not correctly arranged with the property shown in brackets?

\(\text { Match the following. }\)


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Which one of the following alkaline earth metals does not form hydride when it is heated with hydrogen directly?

Zinc oxide (white) is heated to high temperature for some time.
Observe the following statements regarding above process.
I. Zinc oxide colour changes to pale yellow
II. The type of defect formed is 'metal deficiency'
III. Some $\mathrm{Zn}...

10 g of a metal $(M)$ reacts with oxygen to form 11.6 got oxide. What is the equivalent weight of $M$ ?

At STP, a closed vessel contains I mole each of He and $\mathrm{CH}_4$. Through a small hole, 2 L of He and LL of $\mathrm{CH}_4 \mathrm{WHS}$ escaped from vessel in ' $t$ ' minutes. What are the mole fractions of He and $\mathrm{CH}_4$ res...

At 240.55 K , for one mole of an ideal gas, a graph of $p$ (on $Y$-axis) and $V^{-1}$ (on $X$-axis) gave a straight line passing through origin. Its slope $(m)$ is $2000 \mathrm{~J} \mathrm{~mol}^{-1}$. What is the kinetic energy ( in $\mat...

The following data is obtained for coagulating a positively charged sol in 2 hours


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What is the enthalpy change (in J ) for converting 98 of $\mathrm{H}_2 \mathrm{O}(t)+10^{\circ} \mathrm{C}$ to $\mathrm{H}_2 \mathrm{O}(l)$ at $+20^{\circ} \mathrm{C}$ ?
$$ \left(C_p\left(\mathrm{H}_2 \mathrm{O}(\eta)\right)=75 \mathrm{Jmol...

$A, B, C$ and $D$ are some compounds. The entnalpy of formation of $A(g), B(g), C(g)$ and $D(g)$ is $9.7,-110,81$ and $-393 \mathrm{~kJ} \mathrm{~mol}^{-1}$ respectively. What is $\Delta_r H$
(in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) for the gi...