List of top Chemistry Questions asked in TS EAMCET

Given $K_p$ for $2AO_2 + O_2 \rightleftharpoons 2AO_3$ is $4 \times 10^{10}$. Find $K_p'$ for $3AO_3 \rightleftharpoons 3AO_2 + \frac{3}{2} O_2$.
Observe the elements from H (Z=1) to Ca (Z=20). How many elements have no unpaired electrons in their ground state?
Among Li, Na, O, S, the elements having the most negative electron gain enthalpy and least negative electron gain enthalpy respectively are:
Ionization enthalpies of the elements X, Y, Z having successive atomic numbers respectively are 2080, 496, 737 kJ mol$^{-1}$. X, Y, Z are:
According to Bohr's theory of hydrogen atom, the approximate angular momentum of electron in H atom in the ground state is ($h = 6.62 \times 10^{-34}$ Js):
Observe the following statements
Statement-I: Hybridisation is not same in both SF₆ and BrF₅.
Statement-II: BrF₅ is Square pyramidal while SF₆ is octahedral in shape
The correct answer is
On prolonged heating with HI, glucose gives a compound 'C', which can be obtained by Wurtz reaction using sodium metal and compound 'D'. Identify 'D'
The empirical formula of the compound 'D' formed in the given reaction sequence is
C₂H₄ \(\xrightarrow{Br_2|CCl_4}\) A \(\xrightarrow{(i) alc. KOH (ii) NaNH_2}\) B \(\xrightarrow{cyclic\;polymerization}\) C \(\xrightarrow{Cl_2(excess), dry\;AlCl_3, dark, cold}\) D

Observe the following data given in the table. (\(K_H\) = Henry's law constant) 

GasCO₂ArHCHOCH₄
\(K_H\) (k bar at 298 K)1.6740.3\(1.83 \times 10^{-5}\)0.413

The correct order of their solubility in water is

For a first order decomposition of a certain reaction, rate constant is given by the equation 
\(\log k(s⁻¹) = 7.14 - \frac{1 \times 10^4 K}{T}\). The activation energy of the reaction (in kJ mol⁻¹) is (\(R = 8.3 J K⁻¹ mol⁻¹\)) 
Note: The provided value for R is 8.3. We will use the more precise value R=8.314 J K⁻¹ mol⁻¹ for accuracy, as is standard.

The reagent which is used to distinguish primary, secondary and tertiary amines from the mixture is
Identify the incorrect match with respect to compounds to be distinguished and reagent used
What is the product 'Z' in the following reaction sequence?
Identify the compounds A and B involved in the formation of given aldol
Neoprene is the polymer of a monomer X. IUPAC name of X is
In which of the following, intramolecular hydrogen bonding is present?
Match the following
The correct answer is
The products C and D are
Which one of the following statements is not correct?
In the extraction of iron using blast furnace to remove the impurity (X), chemical (Y) is added to the ore. X and Y are respectively
Thionyl chloride on reaction with white phosphorus gives a compound of phosphorus 'C' which on hydrolysis gives an oxo acid 'O'. The correct statements about C and O are
I. Shape of 'C' is pyramidal
II. 'O' is a dibasic acid
III. 'O' is a monobasic acid
IV. 'C' on reaction with acetic acid gives 'O'
\(E^\circ_{M^{2+}/M}\) (in V) is highest for
Arrange the following complexes in the increasing order of their spin only magnetic moment (in B.M)
I. \([Fe(CN)₆]⁴⁻\)
II. \([MnCl₄]²⁻\)
III. \([Mn(CN)₆]³⁻\)
IV. \([Cr(NH₃)₆]³⁺\)
Consider the following
Assertion (A): phosphorus can form both phosphorus (III) and phosphorus (V) chlorides but nitrogen cannot form nitrogen(V) chloride.
Reason (R): The electronegativity of nitrogen is more than that of phosphorus
The correct answer is
The Gibbs energy change of the reaction (in kJ mol⁻¹) corresponding to the following cell
Cr | Cr³⁺(0.1M) || Fe²⁺(0.01 M) | Fe
(Given: \(E^\circ_{Cr^{3+}/Cr} = -0.75V\); \(E^\circ_{Fe^{2+}/Fe} = -0.45V\), 1F = 96,500 C mol⁻¹)