List of top Questions asked in TS EAMCET

Two statements are given below Statement I: The resonance structure with more number of covalent bonds is less stable. Statement II: The position of nuclei does not change in resonance structures.
A crystal is formed by X (cations) and Y (anions). Atoms of Y form ccp and atoms of X occupy half of octahedral voids and half of tetrahedral voids. What is the molecular formula of the crystal?
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 \( t \)

 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:

Match the following: 

Identify the correct statements from the following:
The iodine oxide which is used in the estimation of carbon monoxide is:
Which of the following oxoacids of phosphorus has two P-H bonds?
The metal having the highest melting point among lanthanides is
Which of the following is correct?

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
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)
The electron gain enthalpy (in kJ/mol) of oxygen, sulphur, selenium respectively are
In a common emitter transistor circuit, if the emitter current is changed by 4 mA, the collector current changes by 3.5 mA, then the current gain is