List of top Chemistry Questions asked in TS EAMCET

The RMS velocity of dihydrogen is \( \sqrt{7} \) times more than that of dinitrogen. If \( T_{\text{H}_2} \) and \( T_{\text{N}_2} \) are the temperatures of dihydrogen and dinitrogen, then the correct relationship between them is

Consider the following statements.
I. In the conversion of \( \text{O}_2 \) to \( \text{O}_2^{2+} \) bond order decreases.
II. In the conversion of \( \text{O}_2 \) to \( \text{O}_2^{+} \) magnetic property is not changed.
III. In the conversion of \( \text{O}_2 \) to \( \text{O}_2^{+} \) bond length decreases.
IV. \( \text{O}_2^{2-} \) and \( \text{B}_2 \) have same bond order.
Identify the correct statements

Identify the pair of molecules in which the hybridization of the central atom is \( sp^2 \) with bent geometry

Toluene \( \xrightarrow{(1) \text{CrO}_2\text{Cl}_2 / \text{CS}_2} \xrightarrow{(2) \text{H}_3\text{O}^+} \text{X} \xrightarrow[\text{Conc. NaOH}]{50\%} \text{Y} + \text{Z} \)
The correct statements about X, Y, and Z are
A. Y is a secondary alcohol
B. Y is the reduction product of X
C. Z on heating with soda lime gives benzene
D. Y does not give \( \text{H}_2 \) gas with Na metal

The amine / salt of amine which gives positive test with a mixture of chloroform and alcoholic KOH solution is

The product 'C' in the given reaction sequence is

The incorrect statement about chloramphenicol is

A carbohydrate (A), when treated with dilute HCl in alcoholic solution gives two isomers (B) and (C). B on reaction with bromine water gives a monocarboxylic acid 'Z' and 'C' is a ketohexose. What is A?

Ethylene on reaction with cold, dilute alkaline \(\text{KMnO}_4\) at 273 K gives a compound 'P'. This on polymerisation with which of the following gives dacron?

The number of chlorine (Cl) atoms in the structure of DDT molecule is

The major product in Reimer-Tiemann reaction is X. The reactants are Y and Z. X, Y and Z are respectively.

Metal X obtained from sphalerite ore can be purified by which of the following methods?

Zinc on reaction with concentrated nitric acid gives an oxide of nitrogen (A). Zinc with dilute nitric acid gives another oxide of nitrogen (B). Oxidation numbers of nitrogen in (A) & (B) are respectively

When 100 mL of 0.2 M solution of \(\text{CoCl}_3 \cdot x\text{NH}_3\) is treated with excess of \(\text{AgNO}_3\) solution, \(3.6 \times 10^{22}\) ions are precipitated. The value of \(x\) is \((N = 6 \times 10^{23} \text{mol}^{-1})\)

Identify the reaction related to Deacon's process

Identify the correct statements about lanthanoids
I. \(\text{Ce}^{4+}\) and \(\text{Tb}^{4+}\) act as oxidising agents
II. \(\text{Eu}^{2+}\) and \(\text{Yb}^{2+}\) act as oxidising agents
III. Mischmetal is an alloy of 95% iron and 5% lanthanoid metal
IV. \(\text{La}^{3+}\) and \(\text{Ce}^{4+}\) are diamagnetic in nature

An oxoacid of phosphorus 'X' reduces silver nitrate solution to metallic silver and gets oxidised to another compound Y. X and Y respectively are

An alkene X on ozonolysis gives a mixture of simplest ketone (Y) and 3-Pentanone. The IUPAC name of the alkene X is

The most effective coagulating agent for antimony sulphide sol is

Consider a general first order reaction \(\text{A(g)} \rightarrow \text{B(g)} + \text{C(g)}\). If the initial pressure is 200 mm and after 20 minutes it is 250 mm, then the half-life period of the reaction (in minutes) is
(\(\log 2 = 0.30, \log 3 = 0.48, \log 4 = 0.60\))

Electrolysis of aqueous copper (II) sulphate between Pt electrodes gives 'X' at anode and 'Y' at cathode. X and Y are respectively

A solid contains elements A and B. Anions of B form ccp lattice. Cations of A occupy 50% of octahedral voids and 50% of tetrahedral voids. What is the molecular formula of the solid?

Consider the given sequence of reactions.
\(\text{C}_2\text{H}_6 + \frac{3}{2}\text{O}_2 \xrightarrow[\Delta]{(\text{CH}_3\text{COO})_2\text{Mn}} \text{X} \xrightarrow{\text{Na}} \text{Y}\)
Electrolysis of aqueous solution of Y gives gases P and Q at anode. P and Q are respectively.

When sodium fusion extract of an organic compound is boiled with iron (II) sulphate solution followed by addition of concentrated \(\text{H}_2\text{SO}_4\), gives Prussian blue colour. This confirms the presence of the element