TS EAMCET 2020 (Online) 11th September Evening Shift

\(\text { The major product formed in the following reactions is }\)

An alkene $A\left(\mathrm{C}_4 \mathrm{H}_8\right)$ exhibits cis/trans isomerism. $A$ on ozonolysis gives $B$, which when reacted with NaOH followed by hydroxylamine gave $C$. What are $B$ and $C$ ?

The maximum number of possible electrons in a subshell with $n=3$ and $l=2$ is

The uncertainty in position and velocity of a particle in motion are $1 \times 10^{-8} \mathrm{~m}$ and $6.627 \times 10^{-20} \mathrm{~m} / \mathrm{s}$, respectively. The mass of the particle is ( $h=6.627 \times 10^{-34} \mathrm{Js}$ )

Xerophthalmia disease is caused by the deficiency of

\(\text { The major product in the following reaction is }\)

\(\text { The major product formed in the following reaction is }\)

Find out the correct order of repulsive interaction of electron pairs in the following systems.
(I) Lone pair - lone pair
(II) Lone pair- bond pair
(III) Bond pair-bond pair

The correct set of symbols of the molecular orbitals given below is

The geometry of $\mathrm{XeOF}_4$ is

Aqueous solution of ferric nitrate when mixed with aqueous solution of potassium thiocyanate gives red colour solution. The intensity of red colour becomes constant on attaining equilibrium.
Choose the correct statement when the following c...

What is the unit for the zero order rate constant?

Artificial sweetening agent from below is

\(\text { The major product in the following reactions, is }\)

Which of the following correctly represents the order of ligands in spectrochemical series?

Which of the following ions will exhibit colour in aqueous solution?

A solution of $\mathrm{Fe}^{2+}$ is titrated potentiometrically using $\mathrm{Ce}^{4+}$ solution. When $80 \% \mathrm{Fe}^{2+}$ is titrated, the EMF of the system in $V$ is
(Given, $E^{\circ} \mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}=0.77 \mathr...

The average atmospheric residence time is lowest for which of the given the greenhouse gas?

The major products $P$ and $Q$ from the below reactions are :
\(\mathrm{CH}_3 \mathrm{CH}=\mathrm{CH}_2 \xrightarrow{\mathrm{HBr}} P\)

Product 6-oxoheptanal is formed by reductive ozonolysis of

Dihydrogen can be prepared by which of the following reactions.
(I) Reaction of granulated Zn with dil. HCl
(II) Reaction of Zn with $a q . \mathrm{NaOH}$
(III) By heating calcium hydrogen carbonate

The pH of the solution, when
(i) sodium acetate is dissolved in water.
(ii) ammonium chloride is dissolved in water.

A 1.17 % solution of solute $A$ is isotonic with 7.2 % solution of glucose. If the molecular weight of solute $A$ is 58.5, the value of van't Hoff factor, ' $i$ ' is

A mixture of 3.0 moles of $\mathrm{Na}_2 \mathrm{O}$ and 1.5 mol of $\mathrm{KO}_2$ is dissolved in 1000 mL of water. The vapour pressure of the solution in Torr, at $100^{\circ} \mathrm{C}$ is

In the following reactions, identify $P, Q$ and $R$, respectively
I. $3 \mathrm{Fe}_2 \mathrm{O}_3+\mathrm{CO} \longrightarrow 2 P+\mathrm{CO}_2 \uparrow$
II. $\mathrm{Fe}_3 \mathrm{O}_4+4 \mathrm{CO} \longrightarrow 3 Q+4 \mathrm{CO}_2 \up...

Borax is converted into crystalline boron by the following steps :
\(\text { Borax } \xrightarrow[\mathrm{H}_2 \mathrm{O}]{X} \mathrm{H}_3 \mathrm{BO}_3 \xrightarrow{\Delta} \mathrm{~B}_2 \mathrm{O}_3 \xrightarrow[\Delta]{Y} B\)
Identify ...

Buckminister fullerene contains the following $X$ number of six and $Y$ number of five member rings. What is the value of $X$ and $Y$ ?

The number of dissociable protons in "orthophosphoric acid" is

The basic difference in approach between Mendeleev's periodic law and modern periodic law is the change on the basis of classification of elements from

Which of the following pairs shows diagonal relationship?

\(\text { Monomeric units of melamine polymer are }\)

Which one of the following methods is suitable to separate a mixture of $n$-pentane and toluene?

The weight of potassium dichromate (molecular weight $=294$ ) required to prepare 0.04 N of 250 mL solution is

The carbonates of alkaline earth metals decompose on heating to give
I. $\mathrm{CO}_2$
II. Metal oxide
III. $\mathrm{H}_2 \mathrm{O}$
IV. CO

A compound can crystallise in two forms $\alpha$ and $\beta$ which are fcc and bcc, respectively. The $\alpha$-form has side length of 2 pm and the $\beta$-form has side length of 4 pm . The ratio of their density $\frac{\rho_\alpha}{\rho_\...

How much volume of 1 N aqueous solution of $\mathrm{H}_2 \mathrm{SO}_4$ should be taken, which will contain 0.2 moles of $\mathrm{H}_2 \mathrm{SO}_4$ ?

Equal amounts of two gases of molecular weights 4 and 40 are mixed. The pressure of the mixture is 1.1 atm . What will be the partial pressure of the lighter gas in the mixture?

Which of the curve ( $Z v s p$ ) will be followed by a real gas?

To resist the coagulation of 100 cc gold sol; 1 cc of $10 \% \mathrm{NaCl}$ is added to it in the presence of $10^{-4} \mathrm{~g}$ gelatin. The gold number of gelatin is

Which of the following statements regarding the first law of thermodynamics is correct?

The radius of a sphere is changing. At an instant of time the rate of change in its volume and its surface area are equal. Then the value of radius at that instant is?

The volume of a sphere is increasing at the rate of $4 \pi \mathrm{cc} / \mathrm{sec}$. When its volume is $288 \pi \mathrm{cc}$, the rate of increase (in $\mathrm{cm} / \mathrm{sec}$ ) in its radius is

Assertion (A) The function $f(x)=x-\log \left(\frac{1+x}{x}\right), x>0$ has no maximum.
Reason (R) If a function $f(x)$ is strictly increasing in an interval $(a, b)$, then at any point in $(a, b) f^{\prime}(x) \neq 0$
The correct option a...

The area (in sq. units) enclosed by the curves $y=2 x-x^2$ and $y=x^2-2 x-6$ is

If ${ }^n C_0,{ }^n C_1,{ }^n C_2, \ldots,{ }^n C_n$ respectively are the binomial coefficients in the expansion of $(1+x)^n$, then when $n=10, \sum_{r=1}^{10}{ }^n C_r \cdot r(r-4)=$

If sum of the coefficients of $x^r(r=0,1,2, \ldots, 2 n)$ in the expansion of $\left(1+3 x-2 x^2\right)^n$ is 128 , then $\sum_{r=1}^{2 n} r \frac{(2 n)_{C_r}}{(2 n)_{C_{r-1}}}=$

The approximate value of $\left(3 \sqrt{126}+\sin 61^{\circ}\right)$ correct to three decimal places, obtained by taking $1^{\circ}=0.0174$ radians, is

Let $a=1+i$ and $z=x+i y$. If the curve $z \bar{z}+a z+\bar{a} \bar{z}-4=0$ is cut by the straight line $(z+\bar{z})-i(z-\bar{z})+2=0$ at two points $A$ and $B$, then the equation of the circle passing through the origin, $A$ and $B$ is

A point $P$ moves so that distance from $(0,2)$ to $P$ is $\frac{1}{\sqrt{2}}$ times the distance of $P$ from $(-1,0)$. Then the locus of the point is

If $x^2+y^2-a^2+\lambda(x \cos \alpha+y \sin \alpha-p)=0$ is the smallest circle through the points of intersection of $x^2+y^2=a^2$ and $x \cos \alpha+y \sin \alpha=p, 0