List of top Chemistry Questions asked in TS EAMCET

At T(K), \(K_c\) for the reaction AO\(_2\)(g) + BO\(_2\)(g) \(\rightleftharpoons\) AO\(_3\)(g) + BO(g) is 16. One mole each of reactants and products are taken in a 1L flask and heated to T(K), and equilibrium is established. What is the equilibrium concentration of BO (in mol L\(^{-1}\))?
The number of molecules with electrophilic centres in the following is CH\(_3\)CH\(_2\)Br, CH\(_3\)COCH\(_3\), CH\(_3\)CH\(_2\)CN, (CH\(_3\))\(_2\)Cd
The first ionization enthalpies of the elements X, Y, Z of the second period are 899, 1402, 520 kJ/mol respectively. X, Y, Z respectively are:
The molecular formula of a crystal is \( AB_2O_4 \). Oxygen atoms form a close-packed lattice. Atoms of A occupy \( x\% \) of tetrahedral voids and atoms of B occupy \( y\% \) of octahedral voids. \( x \) and \( y \) are respectively: \flushleft

In the following reaction sequence, what are X and Y respectively? 

What is the percentage of carbon in the product ‘X’ formed in the following reaction?

In which of the following species, the ratio of s-electrons to p-electrons is the same?

What are Y and Z respectively in the given reaction sequence? 

What is 'C' in the given sequence of reactions?

Phosphodiester linkage that joins nucleotides together is present between which carbons of pentose sugar?
Which one of the following order is correct regarding the covalent character of given molecules?

Match the following:

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:
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 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)? \[ \frac{1}{2} A(g) \leftrightarrow B(g) \]
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?

Phenatole can be prepared from which of the following reactants?

What is the IUPAC name of the product Y in the given reaction sequence?

Which of the following sets are not correctly matched? \[ \text{Molecule} \quad \text{Hybridization} \] \[
Which of the following does not evolve \( O_2 \) when made to react with water?
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:

What is 'Z' in the given sequence of reactions?

Match the following reactions with their corresponding products: 

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.
Copper matte is a mixture of: