List of top Chemistry Questions

The particle size of the solute in true solution is:
Chalk powder in water is an example of:
A solution which has more of solute, at a given temperature than that of saturated solution is called a:
The particle size in a suspension is:
The particle size in a colloidal solution is:
Tyndall effect is produced by:
Tyndall effect is exhibited by:
A true solution does not show Tyndall effect, because of the:
The solvent used to prepare aqueous solutions is:
Solutions are classified into aqueous and non-aqueous solutions, based on:

Match the following:
 


The correct answer is:
 

0.1 mole of H\(_3\)PO\(_3\) is present in 500 mL of solution. The normality of it is:
In the extraction of iron, the reaction which occurs at 900-1500 K in blast furnace is
At 300 K, the vapour pressure of toluene and benzene are 3.63 kPa and 9.7 kPa, respectively. What is the composition of vapour in equilibrium with the solution containing 0.4 mole fraction of toluene?
The ratio of solubility of AgCl in 0.1 M KCl solution to the solubility of AgCl in water is:
(Given: Solubility product of AgCl = 10−10)

The correct order of boiling points of hydrogen halides is: 

Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.
A) Al3+
B) Cu2+
C) Ba2+
D) Co2+
E) Mg2+
Choose the correct answer from the options given below
Identify the correct answer
During the preparation of Mohr’s salt solution (Ferrous ammonium sulphate), which of the following acid is added to prevent hydrolysis of Fe2+ ion?
The products A and B obtained in the following reactions, respectively, are
3ROH+PCI3→3RCI+A 
ROH+PCI5→RCI+HCI+B
Given below are two statements :
Statement I : [Co(NH3)6] 3+ is a homoleptic complex whereas [Co(NH3)4Cl2] + is a heteroleptic complex. 
Statement II : Complex [Co(NH3)6] 3+ has only one kind of ligands but [Co(NH3)4Cl2] + has more than one kind of ligands. 
In the light of the above statements, choose the correct answer from the options given below
The pair of Lanthanoid ions which are diamagnetic is
For the reaction 2A⇋ B + C, KC = 4 × 10–3 . At a given time, the composition of reaction mixture is: [A] = [B] = [C] = 2 × 10–3 M. Then, which of the following is correct?
On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as
Given below are two statements:
Statement I: Both [Co(NH3)6]3+ and [CoF6]3- complexes are octahedral but differ in their magnetic behaviour.
Statement II: [Co(NH3)6]3+ is diamagnetic whereas [CoF6]3- is paramagnetic.
In the light of the above statements, choose the correct answer from the options given below: