TS EAMCET 2020 (Online) 11th September Morning Shift

\(\text { Identify } X \text { in the following. }\)

The major products $P$ and $Q$ in the following reaction sequences are

In the two elements, ${ }_{Z_1} A^{M_1}$ and ${ }_{Z_2} B^{M_2}$, the following relations are true. $M_1 \neq M_2$ and $Z_1 \neq Z_2$ but $M_1-Z_1=M_2-Z_2$. These elements are ( $M$ is atomic weight, $Z$ is atomic number)

The correct order of decreasing energy for the electrons whose quantum numbers $n$ and $l$ are given below, is
A. $n=5$ and $l=2$
B. $n=5$ and $l=0$
C. $n=4$ and $l=3$
D. $n=4$ and $l=1$

Find the correct set with isoelectronic species?

Which of the following are reducing sugars?
I. Sucrose
III. Lactose
II. Ribose
IV. Fructose

The correct order of $\mathrm{H}-\mathrm{N}-\mathrm{H}$ bond angles of ammonia, ammonium ion and amide are

Find out the correct hybridisation of the central atom in $\mathrm{BCl}_3, \mathrm{PCl}_5, \mathrm{NH}_3$ and $\mathrm{SF}_6$.

For a first order reaction ( $A \rightarrow B$ ), the temperature ( $T$ ) dependent rate constant $(k)$ in $\mathrm{s}^{-1}$ was found to follow the equation $: \log k=\left(-\frac{20}{T}\right)+4$. The activation energy ( $E_a$ ) and pre-e...

The number of six and five membered rings present in norethindrone (a synthetic progesterone) are respectively

\(\text { What are } X \text { and } Y \text { in the following reaction? }\)

4-Nitrotoluene (para-nitrotoluene) on reduction with $\mathrm{Fe} / \mathrm{HCl}$ and then electrophilic bromination with an excess amount of $\mathrm{Br}_2$ gives

Coordination number of Fe in the complexes $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-},\left(\mathrm{Fe}(\mathrm{CN})_6\right]^{3-}$ and $\left[\mathrm{FeCl}_4\right]^{-}$would be respectively

What is the oxidation state of Cr , when the pH of the aqueous solution of potassium dichromate changes from acidic to basic?

What is the standard cell potential for the reaction with $K=1$ (equilibrium constant)

Which of the following molecules is present in photochemical smog?

The correct order of the relative stability of the following carbanions is
I. $\mathrm{HC} \equiv \mathrm{C}^{-}$
II. $\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2^{-}$
III. $\mathrm{H}_2 \mathrm{C}=\mathrm{CH}^{-}$
IV. $\left(\mathrm{C}_6 \math...

\(\text { Identify the correct decreasing order of acidic strength. }\)

Which of the following sets of functional groups is meta-directing group?

The correct order of reactivity of hydrogen halides with propene is

What will be the organic compound formed, when aluminium carbide react with deuterated water?

What is the pH of 10 L of a buffer solution containing $0.01 \mathrm{M} \mathrm{NH}_4 \mathrm{Cl}$ and $0.1 \mathrm{M} \mathrm{NH}_4 \mathrm{OH}$ having $\mathrm{pK}_b$ of 5 ?

$15 \%$ aqueous solution of glucose (molecular weight $=180 \mathrm{~g} / \mathrm{mol}$ ) is isotonic with $8 \%$ aqueous solution containing an unknown non-dissociable solute. What is the molecular weight of the unknown solute?

The vapour pressure of pure water is 23 mmHg . The vapour pressure of an aqueous solution, which contains 10 mass per cent of solute ' $A$ ' having molecular weight 50 is

The method, which is based on the principle that "different components of a mixture are differently adsorbed on an adsorbent" is called

The solubilities of the impurities in the melt and solid states is not same. This principle is applied during the extraction of boron. This method is known as

When orthoboric acid $\left(\mathrm{H}_3 \mathrm{BO}_3\right)$ is subjected to strong heating, the residue left is

When graphite is heated at $300^{\circ} \mathrm{C}$ with potassium vapour, it forms $\mathrm{C}_8 \mathrm{~K}$ compound that shows one of the following property.

Ozone is obtained from oxygen

How many bridging oxygen atoms are present in $\mathrm{P}_4 \mathrm{O}_{10}$ ?

Decreasing order of number of ionisable hydrogen atoms in the following molecules is
I. $\mathrm{H}_3 \mathrm{PO}_4$
II. $\mathrm{H}_3 \mathrm{PO}_3$
III. $\mathrm{H}_3 \mathrm{PO}_2$
IV. $\mathrm{H}_4 \mathrm{P}_2 \mathrm{O}_6$

Among the following, the pair of elements having same electronegativity values are
I. H and $\mathrm{P} \quad$ II. Be and Al III. N and $\mathrm{Cl} \quad$ IV. C and P

Type of reaction involved in the initial step in the formation of bakelite

What is the increasing order of hydration enthalpies of alkali metal ions?

The angle between (100) and (110) planes of FCC lattice is

The emperical formula of a compound is $\mathrm{C}_2 \mathrm{H}_5 \mathrm{O}$ and its vapour density is 45 . What is the molecular formula of the compound?

For a given unbalanced reaction, $\mathrm{MnO}_2+\mathrm{HCl} \longrightarrow \mathrm{MnCl}_2+\mathrm{H}_2 \mathrm{O}$, which is the limiting reagent, if the initial amount for each of the reactant is 100 grams?
[Molar masses : $\mathrm{MnO...

A vessel of volume 24.6 L contains 1.5 moles of $\mathrm{H}_2$ and 2.5 moles of $\mathrm{N}_2$ at 300 K . Calculate the partial pressure of $\mathrm{N}_2$ in the vessel.

Which among the following graphs, correctly represents the Boyle's Law?

Find the value of the equilibrium constant $(K)$ of a reaction at 300 K , when standard Gibbs free energy change is $-25 \mathrm{~kJ} \mathrm{~mol}^{-1}$ ? (Consider $R=8.33 \mathrm{Jmol}^{-1} \mathrm{~K}^{-1}$ )