List of top Chemistry Questions asked in TS EAMCET

Methemoglobinemia is due to:
Which of the following does not exist?

The set of elements which obey the general electronic configuration \( (n-1)d^{10} ns^2 \) is:}

The dihedral angles in gaseous and solid phases of H\(_2\)O\(_2\) molecule respectively are
Identify the compound which gives CO\(_2\) more readily on heating.

Consider the following (unbalanced) reactions:

\[ \text{BF}_3 + \text{NaH} \xrightarrow{450\,\mathrm{K}} X + \text{NaF} \]

\[ X + \text{H}_2\text{O} \rightarrow Y + \text{H}_2 \uparrow \]

The correct statements about \(X\) and \(Y\) are:

  1. \(X\) is an electron-deficient molecule
  2. In \(X\), a B--B bond is present
  3. \(Y\) is a weak tribasic acid
  4. \(Y\) acts as a Lewis acid
The major components of cement are:

 The functional groups present in the product ‘X’ of the reaction given below are:

The IUPAC name of the following compound is: 

Identify the set of molecules which are not in the correct order of their dipole moments.

Match the following molecules with their respective molecular shapes:

Which of the following will have a spin-only magnetic moment of 2.86 BM?

Match the following: 

Cellulose is a polysaccharide and is made of:

Match the following elements with their respective blocks in the periodic table:
 

The monomer which is present in both Bakelite and Melamine polymers is:
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:
Identify the pair in which the difference in bond order value is maximum.
The pair of molecules/ions with same geometry but central atoms in different states of hybridization is:
In which of the following, ions are correctly arranged in the increasing order of oxidizing power?
If the density of a mixture of nitrogen and oxygen gases at 400 K and 1 atm pressure is 0.920 g L\(^{-1}\), what is the mole fraction of nitrogen in the mixture?

The correct IUPAC name of the given compound is:

Which of the following is an example of allylic halide?
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:

Compound ‘A’ on heating with soda lime gives propane. Identify the compound 'A'.