List of top Chemistry Questions

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}} $ )
A coordinate bond is a dative covalent bond. Which of the below is true?
Which of the following complex has zero magnetic moment (spin only)?
Which of the following is hexadentate ligand?
AgCl dissolves in a solution of NH₃, but not in water because
In which of the below reactions do we find \( \alpha, \beta \)-unsaturated carbonyl compounds undergoing a ring closure reaction with conjugated dienes?
Give the IUPAC name for \[ \text{H}_3\text{C} - \text{CH}_2 - \text{C} - \text{CH}_2 - \text{C} - \text{OCH}_3 \]
Aldol condensation is given by
Phenol is less acidic than
The epoxide ring consists of which of the following?
In the Grignard reaction, which metal forms an organometallic bond?