List of top Questions asked in TS EAMCET

How many faradays of electricity are required to produce $12\,\mathrm{g}$ of magnesium from molten $\mathrm{MgCl_2}$?} \[ (\text{Atomic weight of Mg}=24\,\mathrm{g\,mol^{-1}}) \]

The $\Delta_f\text{H}^\ominus$ of $\text{BaCO}_3\text{(s)}$, 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? \[ \text{BaCO}_3\text{(s)} \xrightarrow{\Delta} \text{BaO(s)}+\text{CO}_2\text{(g)}-x \]

The $\Delta_f\text{H}^\ominus$ of $\text{BaCO}_3\text{(s)}$, 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? \[ \text{BaCO}_3\text{(s)} \xrightarrow{\Delta} \text{BaO(s)}+\text{CO}_2\text{(g)}-x \]

What is the enthalpy change (in $kJ~mol^{-1}$) for the following reaction? \[ CCl_4(g)\rightarrow C(g)+4Cl(g) \]

The time taken for 10% completion of a first order reaction is 20 minutes. The time taken for 19% completion of the same reaction will be:

Given below are two statements Statement-I: Rate of first order reaction decreases with time Statement-II: Rate of zero order reaction decreases with time

If the rate constant of a first-order reaction is $4.606\times10^{-3}\,\mathrm{s^{-1}}$, then the time taken (in seconds) for the concentration of the reactant to decrease from $1.0\,\mathrm{M}$ to $0.1\,\mathrm{M}$ is:}

At \(T\)(K), the following data is obtained for the decomposition of \(A(g)\), which follows first order kinetics \[ A(g)\rightarrow B(g)+C(g) \] \[ \begin{array}{|c|c|} \hline \text{Time (s)} & \text{Total pressure (atm)} \hline 0 & 0.5 100 & 0.6 x & 0.65 \hline \end{array} \] What is \(x\) (in s)? \[ (\log1.25=0.097,\qquad \log1.4285=0.1549) \]

Observe the following reactions:
XeF$_6$ + H$_2$O $\rightarrow$ A + 2HF
XeF$_6$ + 2H$_2$O $\rightarrow$ B + 4HF
Hybridization of central atom in A, B respectively is:

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

When Propene is treated with $\mathrm{HBr}$ in the presence of peroxides, the major product formed is:}

The primary and secondary valencies of chromium in the complex ion, \[ [\mathrm{CrCl_2(C_2O_4)_2}]^{3-} \] are respectively \(x\) and \(y\). The sum of \(x\) and \(y\) is

Which of the following represents the correct pyranose structure of \(\beta\)-D-(+) glucose?

Which one of the following is not used as a filler in laundry soaps?

Compared to cane sugar, artificial sweetener (X) has maximum sweetness value and (Y) has minimum sweetness value. X and Y respectively are:

Which of the following is not correctly matched with the type of drug mentioned in brackets?

Which of the following is not a condensation polymer?

The polymer formed by \(X\) and \(Y\) is

Natural rubber is the addition polymer of monomer X and neoprene is the addition polymer of monomer Y. What are X and Y respectively?

Consider the following reactions \[ Al(s)+HCl(aq)\rightarrow X+A\uparrow \] \[ Al(s)+NaOH(aq)\rightarrow Y+B\uparrow \] Which of the following is are correct? I. Y is water soluble II. X is not soluble in water III. Both A and B are same

Which of the following reactions gives oxide of nitrogen which is in solid state and acidic in nature? \[ \begin{aligned} \text{I. }&\mathrm{NH_4NO_3}\xrightarrow{\Delta} \\ \text{II. }& 2\mathrm{Pb(NO_3)_2}\xrightarrow{\Delta} \\ \text{III. }&\mathrm{P_4O_{10}+4HNO_3}\rightarrow \\ \text{IV. }& 2\mathrm{NO}+\mathrm{N_2O_4}\xrightarrow[250\,K]{} \end{aligned} \] The correct answer is

The oxide of \(14^{\text{th}}\) group element which only exists at high temperature is

A compound \(X\) reacts with \(\mathrm{LiAlH_4}\) in diethyl ether and gives a colourless, highly toxic gas. This gas when heated with \(\mathrm{NH_3}\) gives inorganic benzene. \(X\) is \[ \begin{aligned} \text{I. } & \text{Electron deficient molecule} \text{II. } & \text{Trigonal planar molecule} \text{III. } & \text{On hydrolysis forms octahedral ion} \end{aligned} \] Correct answer is

Match the following.

\[ \begin{array}{|c|c|c|c|} \hline \text{List-I} & \text{Atomic number} & \text{List-II} & \text{Group} \\ \hline \text{A} & 53 & \text{I} & 16 \\ \hline \text{B} & 34 & \text{II} & 2 \\ \hline \text{C} & 38 & \text{III} & 17 \\ \hline \text{D} & 49 & \text{IV} & 13 \\ \hline & & \text{V} & 7 \\ \hline \end{array} \]
The correct answer is

Which one of the following is not a component of photochemical smog?