List of top Chemistry Questions asked in TS EAMCET

The oxides of which element are responsible for photochemical smog?
Given below are two statements Statement--I: Conjugate base of hypochlorous acid is \(\mathrm{OCl^-}\) Statement--II: The value of \(K_w\) does not depend on temperature The correct answer is
Which of the following represents the correct structure of 3-Ethyl cyclohexane carbaldehyde?
The correct formula of hexaammine chromium (III) hexafluoronickelate (II) is
Raoult's law: vapour pressure of a solution is:
\[ n\text{-Heptane} \xrightarrow{X} \text{Toluene} \] \(X\) represents:
\(C_{2}H_{2} \xrightarrow[Hg^{2+}/H^{+},\,333K]{H_{2}O} A \xrightarrow{CH_{3}MgBr/H_{3}O^{+}} B \xrightarrow{Cu/573K} C\) A and C cannot be distinguished by using
A water sample is contaminated with compound X (molar mass \(=120g~mol^{-1}\)). Its molality is \(10^{-4}m\). What is its concentration in ppm?
Catalyst used in the Haber process for ammonia synthesis:
The rate constant of a first-order reaction becomes four times when temperature changes from 300 K to 320 K. Find activation energy.
The reaction of chlorine with hot and concentrated NaOH solution gave two chlorine containing products X, Y and \(H_2O\). Oxidation number of chlorine in X and Y is
The pair of s-block metals which do not form solid hydrogen carbonates is
Identify the correct statements:
I. Hydrogen bonding is present in liquid water and ice.
II. Hydrogenation of vegetable oils produces vanaspati fat.
III. Water present in BaCl$_2\cdot2$H$_2$O is interstitial water.
The electron and hole concentrations in a semiconductor are $5 \times 10^{18}\text{ m}^{-3}$ and $8 \times 10^{19}\text{ m}^{-3}$ respectively. If the mobilities of the electron and hole are $0.24\text{ m}^2\text{V}^{-1}\text{s}^{-1}$ and $0.01\text{ m}^2\text{V}^{-1}\text{s}^{-1}$ respectively, then the conductivity of the semiconductor is:
The angular momentum of electron in H atom in \(n_x\) state is \(1.051\times10^{-34}\,\mathrm{J\,s}\). The de Broglie wavelength of electron in this \(n_x\) state is \[ (h=6.6\times10^{-34}\,\mathrm{J\,s};\ \pi=3.14) \]
Which of the following statements is not correct?
The following graph is obtained by taking partial pressure of HCl(g) on \(y\)-axis and mole fraction of HCl(g) in cyclohexane on \(x\)-axis. The slope (\(m\)) of the graph is
Match the following
The correct answer is
The detergent used in tooth pastes is 'X' and in hair conditioners is 'Y'. What are X and Y respectively?
In hydrogen atom, electron is present in $n_x$ state. The energy of Lyman spectral line of hydrogen spectrum originated from $n_x$ state is $1.635 \times 10^{-18}\text{ J}$. What is the approximate energy (in J) required to excite this electron from $n_x$ state to $(n_x+1)$ state?
Among the four complex ions given, identify the pair of ions with same spin only magnetic moment value:
The pH of \(0.01\) M aqueous aniline solution at \(298\) K is \(8.3\). Its degree of dissociation \((\alpha)\) is \[ (K_b\text{ of aniline}=4\times10^{-10}; \ \text{antilog}(0.7)=5.0; \ \text{antilog}(0.3)=2.0; \ \text{antilog}(0.4)=2.5) \]
The detergent used in tooth pastes is 'X' and in hair conditioners is 'Y'. What are X and Y respectively?
A metal crystallizes in cubic lattice with edge length of \(4\ \text{\AA}\). The number of unit cells of this metal present in \(128\ \text{cm}^3\) volume is
An antibiotic which is bactericidal in nature is: