List of top Chemistry Questions asked in TS EAMCET

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

Identify the correct statements from the following: I. Conjugate base of chloric acid is $ ClO^- $
II. $ AlCl_3 $ is a Lewis acid
III. Conjugate base of $ NH_3 $ is $ NH_2^- $

At T(K), the following graph is obtained for an ideal gas.

Which of the following graphs correctly represents the work done on the gas (shaded part)?

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 correct equation that relates kinetic energy ($E_{\text{ke}}$) and pressure ($P$) of one mole of an ideal gas? - (V = Volume)

Identify the number of molecules having permanent dipole moment from the following: $$ CCl_4, NF_3, H_2S, HBr, SF_4, SiF_4, XeF_4, BeCl_2, SnCl_2, BrF_5, SO_2 $$

Among the following, the molecule in which all atoms obey the octet rule is

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:

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

Chemical Compounds

A: CH₃CH₂CHO

B: CH₃COCH₃

D:

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

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

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 $?

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

The amino acid obtained from cheese is

Match the following:

Which of the following is correct?

Which of the following oxoacids of phosphorus has two P-H bonds?

The iodine oxide which is used in the estimation of carbon monoxide is:

Identify the correct statements from the following:

Match the following:

A few sols are given below:
As₂S₃ sol, starch sol, Al₂O₃ ·
xH₂O sol, TiO₂ sol, gold sol, congo red sol, blood, methylene blue sol, CdS sol
The number of positively charged sols in the above list is:

Identify the correct graph for a first-order reaction (A → P) Given:
- $ x $-axis = time ($ t $)
- $ a $ = Initial concentration of A
- $ (a-x) $ = Concentration of A at time $ t $

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} $; $\Delta_{\text{mix}} V = 0$.