List of top Questions asked in TS EAMCET

What are X and Y respectively in the following reactions? 

At 300 K, 3.0 moles of an ideal gas at 3.0 atm pressure is compressed isothermally to one half of its volume by an external pressure of 6.0 atm. The work done (in kJ) is:
Identify the pair of hydrides which have polymeric structure:

Which one of the following complex ions has geometrical isomers?

Option 1: \(\left[\text{Co}(\text{Cl})_2(\text{en})_2\right]^+\)

Option 2: \(\left[\text{Cr}(\text{NH}_3)_4(\text{en})\right]^{3+}\)

Option 3: \(\left[\text{Co}(\text{en})_3\right]^{3+}\)

Option 4: \(\left[\text{Ni}(\text{NH}_3)_5\right]\text{Br}\)

Identify the number of molecules having permanent dipole moment from the following: $$ CCl_4, NF_3, H_2S, HBr, SF_4, SiF_4, XeF_4, BeCl_2, SnCl_2, BrF_5, SO_2 $$
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:
Which of the following sequence of reagents converts benzoic acid to benzaldehyde?
The incorrect rule regarding the determination of significant figures is:
At 61 K, one mole of an ideal gas of 1.0 L volume expands isothermally and reversibly to a final volume of 10.0 L. What is the work done in the expansion?
In the given sequence of reactions: \[ \text{P}_4 + \text{NaOH} + \text{H}_2\text{O} \;\longrightarrow\; \dots \;\longrightarrow\; X \;+\; 2\,\text{NaH}_2\text{PO}_2 \;\longrightarrow\; \dots \] The final product obtained with copper and \(\text{H}_2\text{SO}_4\) is:
The monomer which is present in both Bakelite and Melamine polymers is:

Arrange the following in the correct order of their boiling points: 

Acrolein (X) is one of the chemicals formed when \( O_3 \) and \( NO_2 \) react with unburnt hydrocarbons present in polluted air. The structure of 'X' is:
The correct statements of the following are: A) Aniline forms a stable benzene diazonium chloride at 285K.
B) N - Phenylethanamide is less reactive towards nitration than aniline.
C) p - CH\(_3\)C\(_6\)H\(_4\)COCl is Hinsberg reagent.
Which of the following does not evolve \( O_2 \) when made to react with water?

Phenatole can be prepared from which of the following reactants?

Which of the following sets are not correctly matched? \[ \text{Molecule} \quad \text{Hybridization} \] \[
Observe the following two statements: I. For an isolated system, \( \Delta U = 0 \); \( q = 0 \) II. For a closed system, \( \Delta U = 0 \); \( q \neq 0 \) The correct answer is
The number average molecular weight (M\(_n\)) of a polymer is 1500. In this polymer, 800 molecules of molar mass 1000, 100 molecules of molar mass 2000 and x molecules of molar mass 5000 are present. What is the value of x?
Phosphodiester linkage that joins nucleotides together is present between which carbons of pentose sugar?

Which of the following statements are correct?

i) \( CCl_4 \) undergoes hydrolysis easily.
(ii) Diamond has directional covalent bonds.
(iii)Fullerene is the thermodynamically most stable allotrope of carbon.
(iv)Glass is a man-made silicate.
 

Which one of the following order is correct regarding the covalent character of given molecules?
If first ionization enthalpy (\(\Delta H\)) values of Na, Mg and Si are respectively 496, 737, and 786 kJ/mol, the first ionization enthalpy value of Al (in kJ/mol) will be:
The equilibrium constants for the following two reactions are given below at T(K): \[ 2A(g) \leftrightarrow B(g) + C(g), \quad K = 16 \quad \text{and} \quad 2B(g) \leftrightarrow D(g), \quad K = 25. \] What is the value of the equilibrium constant (K) for the reaction given below at T(K)? \[ \frac{1}{2} A(g) \leftrightarrow B(g) \]

Match the following: