List of top Chemistry Questions

A gas will approach ideal behaviour at
A gas $X$ at $1$ atm is bubbled through a solution containing a mixture of $1M$ $Y^-$ and $1 MZ^-$ ions at $25 ^\circ C$. If the reduction potenital of $Z > Y > X$, then
The optically active tartaric acid is named as D-(+)-tartaric acid because it has a positive
In compounds of type $EC1_3$, where E = B , P, As or Bi, the angles Cl-E - Cl for different E are in the order
On heating ammonium dichromate, the gas evolved is
Which of the following gives lactic acid on treating with HCN followed by hydrolysis?
The product obtained, when acetophcnone is treated with zinc-amalgum in cone. $ HCl, $ is:
The oxide which is not reduced by hydrogen is:
The compound which does not possess a peroxide linkage is:
The addition of an inert gas at constant volume to an equilibrium will favour :
Sodium phenoxide, when treated with $ C{{O}_{2}} $ under pressure, give:
Isotonic solution have same:
Colloidal solution of gold is prepared by:
Chlorine reacts with ethanol to give:
Which one of the following compounds, is used in photography?
The smallest among the following ion is:
When a molten ionic hydride is electrolysed :
The oxidation number of nickel in $ {{K}_{4}}[Ni{{(CN)}_{4}}] $ is:
Which of the following particles is not present in the nucleus?
The element which forms ions in the dimeric state is :
In the compound $CH_2=CH-CH_2-CH_2-C \equiv CH$, the $C_2-C_3$ bonds is of
A compound, when boiled with aqueous $ N{{a}_{2}}C{{O}_{3}}, $ gives glycol. The compound is:
A coordination complex compound of cobalt has molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution.On reacting this solution with excess of silver nitrate solutions, two moles of AgCl get precipitated. The ionic formula of this complex would be
According to VSEPR theory, the shape of the water molecule is
In crystals of which of the following ionic compounds would you expect maximum distance between centres of cations and anions?