List of top Chemistry Questions

Among the following species, identify the pair having same bond order \( CN^{-} \), \( O_{2}^{-} \), \( NO^{+} \), \( CN^{+} \):
A neutral molecule \(XF_{3}\) has a zero dipole moment. The element X is most likely:
Which one of the following is not an allylic halide?
Oxidation number of potassium in \( K_{2}O \), \( K_{2}O_{2} \) and \( KO_{2} \), respectively, is:
What are the monomers of Buna-S?
Calculate the pH of a \(0.001\,\text{M}\) solution of \(HNO_3\).
What color is produced when Phenol reacts with neutral Ferric Chloride?
What is the oxidation state of Phosphorus in \(H_3PO_4\)?
Arrange carbocations in increasing order of stability.
What is the Van’t Hoff factor (\(i\)) for a completely dissociated solution of \(K_2SO_4\) in water?
What is the product obtained at the cathode during the electrolysis of molten NaCl?
Which reagent is typically used in Rosenmund reduction to convert acyl chlorides to aldehydes?
What are the monomers of Bakelite?
The pairs among $A = [SO_3^{2-}, CO_3^{2-}]$, $B = [O_2^-, F_2]$, $C = [CN^-, CO]$, $D = [NH_3, H_3O^+]$ and $E = [MnO_4^-, CrO_4^{2-}]$ that do not have similar Lewis dot structure are
What is the stability order of carbocations?
In \( PO_4^{3-} \), the formal charge on each oxygen atom and the P - O bond order respectively are
The Bohr orbit radius for the hydrogen atom (n = 1) is approximately 0.530 \AA. The radius for the first excited state (n = 2) orbit is (in \AA)
For the reaction CO(g) + \(\frac{1}{2}\) O\(_2\)(g) \(\rightarrow\) CO\(_2\)(g) Which one of the statement is correct at constant T and P?
Chloride ion and potassium ion are isoelectronic. Then
The screening effect of d-electrons is
What is the Van't Hoff factor (\(i\)) for a non-electrolyte?
What is the product of the reaction between Phenol and concentrated \(HNO_3\)?
In a BCC (Body-Centered Cubic) unit cell, what is the coordination number?
What is the product when Phenol reacts with neutral Ferric Chloride?
Which element has the highest electronegativity in the periodic table?