List of top Chemistry Questions

In the given compound which of the following hydrogens is most acidic? $\underset{(a)}{CH_3} -\underset{(b)}{CH_2} -\overset{\underset{||}{O}}{C} -\underset{(c)}{CH_3}$
Identify $B$ in the following reaction
Which of the following is not present in a nucleotide?
The IUPAC name of $ [Ni(NH_3 )_4][NiCl_4]$ is
Among the following surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions is
A gas described by van der Waals' equation
Among the following, the coloured compound is
Hyperconjugation involves overlap of the following orbitals
Native silver metal forms a water soluble complex with a dilute aqueous solution of $NaCN$ in the presence of
The correct statement(s) about the compound given below is/are
According to $VSEPR$ theory the repulsion between different pair (lone or bond) of electrons obey the order
From the molecular orbital theory, one can show that the bond order in $F_{2}$ molecule as
The nature of the bond in diamond is
Differentiating electron in inner transition elements enters the ......... orbital.
What is (are) number $(s)$ of unpaired electrons in the square planar $[Pt(CN)_4]^{2-}$ ion?
Which of the following can give a Grignard reagent when reacted with magnesium in dry ether?
When copper reacts with hot and conc. $ H_2SO_4, $ gives
The chemical name of anisole is
An aqueous solution of 6.3 g of oxalic acid dihydrate is made upto 250 mL. The volume of $ \text{0}\text{.1}\,\text{N}\,\text{NaOH} $ required to completely neutralize 10 mL of this solution is
If $ X $ is the total number of collisions which a gasmolecule register with others per unit time under particular conditions, then the collision frequency of the gas containing N molecules per unit volume is
The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state one, would be (Rydberg constant $ =1.097\times {{10}^{7}}\,{{m}^{-1}} $ )
Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offers an exception and is concentrated by chemical leaching?
What will be the bond angle C-0-H in alcohol if hybridisation of C and O atom possess sp$^3$hybridisation?
AgCl dissolves in a solution of NH₃, but not in water because
Which of the following is hexadentate ligand?