List of top Chemistry Questions asked in AP EAMCET

Among the following species, the correct set of isomolecular pairs are: \[ \mathrm{XeO}_3, \, \mathrm{CO}_3^{2-}, \, \mathrm{SO}_3, \, \mathrm{H}_3\mathrm{O}^+, \, \mathrm{ClF}_3 \]
Observe the following reactions. Identify the reaction in which the hybridisation of the underlined atom is changed:

Match the following elements with their correct classifications: 

The graph shown below represents the variation of probability density, \( \Psi(r) \), with distance \( r \) of the electron from the nucleus. This represents: 

If uncertainty in position and momentum of an electron are equal, then uncertainty in its velocity is:

Identify the amino acid which has: 

The correct sequence of reactions involved in the following conversion is: 

Match the following: 

Given below are two statements:
Statement I: Viscosity of liquid decreases with an increase in temperature.
Statement II: The units of viscosity are kg m-1 s-2.

 At 300 K, for the reaction A → P, the ∆Ssys is 5 J K-1 mol-1. What is the heat absorbed (in kJ mol-1) by the system?

Lithium forms an alloy with ‘X’. This alloy is used to make armor plates. What is ‘X’?

Match the following bond enthalpies with their respective bonds: 

Given below are two statements:
Statement-I: Easily liquefiable gases are readily adsorbed.
Statement-II: Adsorption enthalpy for physisorption is less compared to adsorption enthalpy for chemisorption.
The correct answer is:
A polymer X is biodegradable and is obtained from the monomers Y, Z. What are Y and Z?
Which of the following is an essential amino acid?
Identify the correct set from the following.
Chlorobenzene (X) when reacted with reagent ‘A’ gets converted to phenol (Y). The major product obtained from nitration of X gets converted to p-nitrophenol (Z) by reaction with reagent B. What are A and B respectively?

Match the following reactions with the product obtained from them: 

What are X and Y respectively in the following reaction sequence?  

Arrange the following in decreasing order of their acidity: 

What are X and Y in the following set of reactions?

An alkyl halide \( C_3H_7Cl \), on reaction with a reagent X, gave the major product Y (\( C_4H_7N \)). Y on hydrolysis released a gas, which turns red litmus to blue. What are X and Y?
In which of the following sets of molecules, the central atoms of molecules have same hybridisation?
The correct increasing order of number of lone pair of electrons on the central atom of \(SnCl_2\), \(XeF_2\),\( CIF_3\) and \( SO_3\) is

The following graph is obtained for a gas at different temperatures (T1, T2, T3). What is the correct order of temperature? (x-axis = velocity; y-axis = number of molecules)