List of top Chemistry Questions

Which one of the following ions has the highest value of ionic radius ?
The basic principle of Cottnell's precipitator is
Among the following, which is least acidic ?
A ligand can also be regarded as
The overlapping of orbitals in benzene is of the type
The IUPAC name for tertiary butyl iodide is
Sodium nitrate on reduction with $Zn$ in presence of $NaOH$ solution produces $NH_3$ Mass of sodium nitrate absorbing $1$ mole of electron will be
The final product of the following reaction is/are
An ester $ (A) $ with molecular formula $ C_9H_{10}O_2 $ was treated with excess of $ CH_3MgBr $ and the complex so formed was treated with $ H_2SO_4 $ to give an olefin $ (B) $ . Ozonolysis of $ (B) $ gave a ketone with molecular formula $ C_8H_8O $ which shows positive iodoform test. The structure of $ (A) $ is
Which of the following is chiral?
The phenomenon observed when a beam of light is passed through a colloidal solution, is
The correct order of boiling point for primary $ (1^{\circ}) $ , secondary $ (2^{\circ}) $ and tertiary $ (3^{\circ}) $ alcohols is
In the reaction $ 2 A + \text{dry silver oxide} \xrightarrow { \triangle } \, \text{ether} + 2 \, AgX $ A is a/an
Tranquilisers are also known as
Solutions $ A $ , $ B $ , $ C $ and $ D $ are respectively $ 0.1\, M $ glucose, $ 0.05 \,M\, NaCl $ , $ 0.05 \,M\, BaCl_2 $ and $ 0.1\, M\,AlCl_3 $ . Which one of the following pairs is isotonic ?
Total number of rare earth elements is
Abnormal colligative properties are observed only when the dissolved non-volatile solute in a given dilute solution
$RbO_2$ is
The emf of Daniell cell at $298 K$ is $E_{1}$ $Zn \left| ZnSO _{4}(0.01 M )\right|\left| CuSO _{4}(1.0 M )\right| Cu$ When the concentration of $ZnSO _{4}$ is $1.0 M$ and that of $CuSO _{4}$ is $0.01 M$, the emf changed to $E_{2}$. What is the relation between $E_{1}$ and $E_{2}$ ?
The bond angle in $AsH _{3}$ is greater than that in
The heat of formation of $ CO(g) $ and $ C{{O}_{2}}(g) $ are $ \Delta H=-110 $ and $ \Delta H=-393\,\,kJ\,\,mo{{l}^{-1}} $ respectively. What is the heat of reaction $ (\Delta H) $ (in $ kJ\,\,mo{{l}^{-1}}) $ for the following reaction? $ CO(g)+\frac{1}{2}{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g) $
Adipic acid on heating form
In an open system
The ??pin-only??magnetic moment [in units of Bohr magneton,$\left(\mu_{\beta}\right)$ ] of $Ni^{2+}$ in aqueous solution would be (Atomic number of Ni = 28):
What is the $pH$ value of $M H _{2} SO _{4}$ ?