List of top Chemistry Questions

In which form does \(BeCl_{2}\) exist in the solid state, vapor state and high temperature?
(1) Polymeric, Dimeric, Monomeric
(2) Dimeric, Polymeric, Monomeric
(3) Monomeric, Dimeric, Polymeric
(4) Polymeric, Monomeric, Dimeric

The product , which is not obtained during the electrolysis of brine solution is ____ .
Total spin only magnetic moment of the ion [Mn(SCN)6]x– is 5.92 B.M. Find out the value of x.
Identify the correct statement about the compound GaAIC14
Compounds of Xenon have one electron pair on central atom :
For a metal ion, the calculated magnetic moment is 4.90 BM. This metal ion has ______ number of unpaired electrons.
Which of the following acts as a stabilizer in the decomposition of H2O2?
Out of the following which has maximum CFSE? ( consider with sign)
Which of the following can be represented as a meridional isomer?
During bleeding from cut \(FeCl_3\) is used to stop bleeding as
An unknown organic compound is heated with fuming \(HNO_3\). The reaction mixture is treated with aq \(BaCl_2\) solution which gives white precipitate. Identify the unknown organic compound.
Read the following two statements
Statement I: Ionic radius of Li+ is greater than Mg++
Statement II: Lithium and magnesium can't form superoxide

Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R).
Assertion (A): Acidic nature follows the order:

Reason (R): F is a better electron-withdrawing group than Cl
In the light of the above statements, write the detailed answer:

Select the correct order of electronegativity of the elements: B, C, At, S
Which of the following metals can be extracted through alkali leaching technique?
Consider the reaction \(Cu^{2+} + X^- → Cu_2X_2 + X_2\).
X2 will be predominantly?
How many factors will contribute to a major role in covalent character of a compound.
  1. Polarising power of cation
  2. Polarisability of the anion
  3. Distortion caused by cation
  4. Polarisability of cation
CH3CH2-Br \(\overrightarrow{Acetone}^{NaI}\) CH3-CH2-I+NaBr
Which of the following statement is correct ? 
What happens when lyophilic sol is added to lyophobic sol. prevention from coagulation precipitation emulsion electrophoresis
Consider the following:
  1. D.D.T.
  2. Aldrin
  3. Sodium arsenite
  4. Sodium chlorate
How many of these are pesticides?
Which of the following shows an incorrect method of refining?
Which of the following elements is most reactive?

Predict expression from α in terms of \(K_{eq}\) and concentration C : 

\(A_2 B_3(aq) \leftrightharpoons 2{A_3} (aq)+3B_{{2-}}(aq)\)

Number of ambidentate ligands in given complex [M(en)(SCN)4]:

Photochemical smog found mainly in