List of top Chemistry Questions

The formula dichlorobis (urea) copper (II) is

The core metal of chlorophyll is

The concentration of reactants is increased by x. then equilibrium constant K becomes

Which of the following 0.10 m aqueous solution will have the lowest freezing point ?

Of the following $0.10\,m$ aqueous solutions, which one will exhibit the largest freezing point depression?

Molar conductivities $(\Lambda^{\circ}_m)$ at infinite dilution of $ { NaCl, HCl}$ and $ {CH3COONa }$ are $126.4, 425.9 $ and $ {91.0 \, S\, cm^2 \, mol^{-1}}$ respectively. $(\Lambda^{\circ}_m)$ for $ {CH3COOH}$ will be:

A process for converting a precipitate into a colloidal solution is known as

A gas has a volume of 15 ml at 300 K and 740 mm of Hg. Find the temperature if volume becomes 10 ml at 760 mm pressure of Hg.

Name the compound $ {{O}_{2}}Pt{{F}_{6}} $ .

Which profile is a true representation of chemosorption?

Which is the correct decreasing order of bond angle in the following series?

Malachite is a mineral of

Brass is an alloy of copper (Cu) and

$NO_3^-$ is planar while $NH_3$ is pyramidal. $N$ in $NO_3^-$ is $sp^2$ and in $NH^3$ is $sp^3$ hybridized.

For the reaction $H_2(g) + I_2(g) \to 2HI (g)$ the change in enthalpy ($\Delta H$) will be

In the compound Lithium tetra-hydroaluminate, the ligand is

Which of the following compound, on reaction with $NaOH$ and $Na _{2} O _{2}$, gives yellow colour?

In which of the following methane is formed?

Reduction of benzoyl chloride with $ Pd - BaSO_4 $ produces

Ammonia, on reaction with excess of chlorine, gives

Which one of the following is the correct order of the size of iodine species?

Ketones [RCOR] where $R=R_1 =$ alkyl group, can be obtained in one step by

$D_2O$ is used more in

Which of the following has the smallest size ?

Which of the following has square planar structure ?