List of top Chemistry Questions asked in TS EAMCET

Match the following:

The amino acid obtained from cheese is

Which of the following is used as a substitute for sucrose?

An alkene $ X $ ($ C_5H_{10} $) on reaction with $ HBr $ gave $ Y $ ($ C_5H_{11}Br $). $ Y $ undergoes hydrolysis via an $ S_N1 $ mechanism. What is $ X $?

The products of the following reactions $ X $ and $ Y $ respectively are Reaction:

What are the reagents A, B, and C respectively in the following reaction sequence? Reaction Sequence:

Chemical Compounds

A: CH₃CH₂CHO

B: CH₃COCH₃

D:

Which of the following sequence of reagents converts benzoic acid to benzaldehyde?

An organic compound $ C_7H_5N $ on reduction with reagent X gave Y. Reaction of Y with p-toluene sulphonyl chloride gave Z which is insoluble in alkali. X and Y respectively are:

At 300 K, aqueous KCl and aqueous K$_2$SO$_4$ solutions were electrolyzed separately using Pt electrodes. The gases liberated at cathodes in these two electrolytic processes are respectively:

Two statements are given below Statement I: Liquid A and liquid B form a non-ideal solution with positive deviation. \hspace{0.5cm} The interactions between A and B are weaker than A–A and B–B interactions. Statement II: For an ideal solution, $\Delta_{\text{mix}} H = 2 \text{ kJ mol}^{-1} $; $\Delta_{\text{mix}} V = 0$.

Identify the correct statements from the following: I. $ H_2O_2 $ oxidizes PbS to $ PbSO_4 $
II. $ H_2O_2 $ is used in the industrial preparation of sodium perborate
III. $ H_2O_2 $ is insoluble in water

The electron gain enthalpy (in kJ/mol) of oxygen, sulphur, selenium respectively are

A hydrocarbon has 85.7\% of carbon by weight. 56 g (2 moles) of hydrocarbon was completely burnt in oxygen and obtained $ CO_2 $ and $ H_2O $. What is the weight (in g) of $ CO_2 $ formed? - (C = 12 u, H = 1 u, O = 16 u)

What is the energy (in J) required to transfer the electron from $ n = 1 $ to $ n = 2 $ state in $ \text{Li}^{2+} $? (K = constant $ 2.18 \times 10^{-18} $ J)

Match the following:

Element	List - II	Atomic Radius (in pm)
A. Na	I.	152
B. Li	II.	99
C. Cl	III.	64
D. F	IV.	186

The electronic configuration of four elements are given below:

Identify the sets containing isostructural molecules from the following

I. $\text{SiF}_4$, $\text{SF}_4$
II. $\text{IO}_3^-$, $\text{XeO}_3$
III. $\text{BH}_4^-$, $\text{NH}_4^+$
IV, $\text{PF}_6^-$, $\text{SF}_6$
The correct option is

At $ T(K) $, three moles of an ideal gas is present in a 10 L vessel. If the kinetic energy of an ideal gas is $ 3000 $ J mol$^{-1}$, the approximate pressure of the gas (in atm) is:

A hydrocarbon containing C and H has 92.3\% of C. When 52 g of hydrocarbon is completely burnt in oxygen, $ x $ moles of water and $ y $ moles of CO$_2$ were formed. The liberated water is sufficient to liberate one mole of H$_2$ when reacted with sodium metal. What is the weight (in g) of O$_2$ consumed?

Identify the reaction for which $ K_p = K_c $:

Which of the following statements are not correct? i) $ \text{BeO has rock-salt structure} $
ii) $ \text{BeSO}_4 \text{ is readily soluble in water} $
iii) $ \text{The maximum coordination number of beryllium is four} $
iv) $ \text{Be(OH)}_2 \text{ is basic in nature} $

Observe the following compounds/ions: \[ H_3BO_3, \, [B(OH)_4]^-, \, BH_4^-, \, [BCI_3 \cdot NH_3], \, SiO_4^{2-} \] The number of compounds/ions with tetrahedral shape is:

Which of the following sets of oxides are correctly matched?

Which radical is responsible for depletion of ozone in stratosphere?