List of top Chemistry Questions asked in TS EAMCET

Analysis shows that a transition metal forms an oxide with the formula \[ \mathrm{M}_x\mathrm{O}_{1.00} \] (where \(x<1\)). The ratio of \(\mathrm{M}^{3+}\) and \(\mathrm{M}^{2+}\) ions in the oxide is:

Which of the following is not the correct statement about group 1 elements?

Identify the edge lengths \((a,b,c)\) in the unit cell shown below.

The $\Delta_f\text{H}^\ominus$ of $\text{BaCO}_3\text{(s)}$, $\text{BaO(s)}$ and $\text{CO}_2\text{(g)}$ is respectively $-1216.3$, $-553.5$ and $-393.5\text{ kJ mol}^{-1}$. What is the value of $x$ (in $\text{kJ mol}^{-1}$) in the following reaction?} \[ \text{BaCO}_3\text{(s)} \xrightarrow{\Delta} \text{BaO(s)}+\text{CO}_2\text{(g)}-x \]

Which of the following exhibit optical isomerism? I. \([Fe(C_2O_4)_3]^{3-}\) II. \([Cr(H_2O)_4Cl_2]^+\) III. \([Co(NH_3)_2(en)_2]^{3+}\)

Which alkanes undergo aromatization?

If the length of a linear antenna is increased by $60\%$ and the wavelength of the signal is decreased by $20\%$, then the percentage increase in the effective power radiated by the antenna is:

What are X, Y, Z in the following reactions?

The following reaction takes place in a galvanic cell \[ 2Cr(s)+3Cd^{2+}(aq)\rightarrow2Cr^{3+}(aq)+3Cd(s) \] What is \(\Delta_rG^\circ\) of this cell? Given: \[ F=96500~Cmol^{-1} \] \[ E_{Cd^{2+}/Cd}^{\circ}=-0.4V \] \[ E_{Cr^{3+}/Cr}^{\circ}=-0.74V \]

Identify the reactions, in which products are correctly given: I. \[ IBr + H_2O \rightarrow HI + HOBr \] II. \[ ClF_3 + H_2O \rightarrow HF + HOClO \] III. \[ IF_5 + H_2O \rightarrow HF + HIO_3 \]

Match the following:

Match the following orders with their properties.

Which of the following will be the product of Hell-Volhard-Zelinsky reaction?

Consider the following reaction sequence given below: \[ CH_3CH_2Br \xrightarrow[(ii)\ H_2O]{(i)\ A} X \xrightarrow{B} C_6H_5CH_2CH_2OH \] Identify the pair of sets from the following in which A and B are present in order: I. AgCN ; \(H_2/Pt\) II. AgCN ; \(LiAlH_4,H_2O\) III. KCN ; \(LiAlH_4,H_2O\) IV. KCN ; \(B_2H_6\)

The artificial sweetener which contains \(-\mathrm{Cl}\) in its structure and is stable even at cooking temperatures is

Noble metals like Au, Pt dissolve in a mixture of

The biodegradable polymer among the following is:

Which one of the following complexes has least number of stereoisomers?

The pairs of ions which exhibit same colour in aquated state are: I. \[ Fe^{2+}, Ni^{2+} \] II. \[ V^{2+}, Cr^{2+} \] III. \[ Cr^{2+}, Cu^{2+} \]

If the radius of $_{13}\text{Al}^{27}$ nucleus is $3.6\text{ fm}$, then the number of neutrons in a nucleus of atomic number $29$ and radius $4.8\text{ fm}$ is:

Consider the following species: \[ Li_2,\; B_2,\; Be_2,\; C_2,\; O_2,\; O_2^{2-},\; F_2 \] The number of species with bond order value 1 is:

Observe the following reactions

Which are common for both Y and W? I. Four P-OH bonds II. Two P-H bonds III. Two \(P=O\) bonds IV. One P-O-P bond

The difference in bond angles between $\text{SO}_2$ and $\text{H}_2\text{O}$ is:}