List of top Chemistry Questions asked in TS EAMCET

A polymer contains 800 molecules of molar mass 1000, 100 molecules of molar mass 2000 and 100 molecules of molar mass 5000. What is its number average molecular weight (\(M_n\))?
The vitamin that can be stored in the body and whose deficiency results in disease is:
The drug which is obtained from opium poppy and its use are respectively:
Hydrolysis of an alkyl halide \( X \) (\(C_6H_5Br\)) follows second order kinetics. Reaction of \( X \) with \( C_6H_5Cl \) in the presence of Na/dry ether gave \( Y \). Oxidation of \( Y \) in the presence of \( KMnO_4 / OH^- \) gave \( Z \). What are \( Y \) and \( Z \) respectively?

Match the following carboxylic acids with their pKa values.

The major product of the following reaction is 

What are X and Y respectively in the following reactions? 

A carbonyl compound \( X(C_3H_6O) \) on oxidation gave carboxylic acid \( Y(C_3H_6O_2) \). The oxime of \( X \) is:
Two statements are given below: Statement I: The boiling points of alcohols increase with increase of branching in carbon chain.
Statement II: The solubility of alcohol decreases with increase in size of alkyl group.
The set of complex ions having the same number of unpaired electrons is
The oxide of nitrogen, 'X' is a blue solid and is acidic in nature. \( X \) is
In which of the following metal extraction, \( CO_2 \) is used?
The number of products formed by thermal decomposition of lithium nitrate, sodium nitrate respectively are:
What is X in the following reaction? \[ CO(g) + 2H_2(g) \xrightarrow{X} CH_3OH(l) \]
Which one of the following order is correct regarding the covalent character of given molecules?
At \( T(K) \), a vessel contains \( V \) litres of an ideal gas. The vessel was partitioned into three equal parts. The volume (in L) and temperature (in K) in each part are respectively
Which of the following gives proof of quantized electronic energy levels in hydrogen atom?

Identify the correct statements:

  • (i) LiF has more covalent character compared to KF.
  • (ii) Dipole moment of NF3 is greater than that of NH3.
  • (iii) The bond order is same for F2 and O2.
  • (iv) Ionic compounds possess low melting and boiling points.

Two statements are given below: 

I. Milk sugar is a disaccharide of \( \alpha \)-D-galactose and \( \beta \)-D-glucose. 
II. Sucrose is a disaccharide of \( \alpha \)-D-glucose and \( \beta \)-D-fructose. The correct answer is:

Two statements are given below: Statement I: In H atom, the energy of 2s and 2p orbitals is the same. 
Statement II: In He atom, the energy of 2s and 2p orbitals is the same. 

The set containing the elements with positive electron gain enthalpies is?

Assertion (A): The ionic radii of \( Na^+ \) and \( F^- \) are the same. 
Reason (R): Both \( Na^+ \) and \( F^- \) are isoelectronic species. 

The number of lone pairs of electrons on the central atom of \( ClF_3, NF_3, SF_4, XeF_4 \) respectively are?

The variation of volume of an ideal gas with its number of moles (\( n \)) is obtained as a graph at 300 K and 1 atm pressure. What is the slope of the graph? 

Observe the following reaction: \[ 2KClO_3 (s) \xrightarrow{\Delta} 2KCl (s) + 3O_2 (g) \] In this reaction: