List of top Chemistry Questions

Sulphuryl chloride $(SO_2Cl_2)$ reacts with white phosphorus $(P_4)$ to give
The physical states of dispersed phase and dispersion medium in colloid like pesticide spray respectively are
In aqueous alkaline solution, two electron reduction of $HO^-_2$ gives
The variation of the boiling points of the hydrogen halides is in the order $HF > HI > HBr > HCl$. What explains the higher boiling point of hydrogen fluoride ?

The vacant space in bcc lattice unit cell is:

Consider the following changes $M(s) \longrightarrow M(g)$ $M(g) \longrightarrow M^{2+}(g)+2 e^{-}\ldots$(1) $M(g) \longrightarrow M^{+}(g)+e^{-}\ldots$(2) $M^{+}(g) \longrightarrow M^{2+}(g)+e^{-} \ldots$ (3) $M(g) \longrightarrow M^{2+}(g)+2 e^{-}\ldots$(4) The second ionisation energy of $M$ could be determined from the energy values associated with
Consider the water gas equilibrium reaction, $C ( s )+ H _{2} O ( g ) \rightleftharpoons CO ( g )+ H _{2}( g )$ Which of the following statements is true at equilibrium?
A certain metal when irradiated by light $(r = 3.2 \times 10^{16} Hz)$ emits photoelectrons with twice kinetic energy as did photoelectrons when the same metal is irradiated by light $(r =2.0 \times 10^{16} Hz)$. The $v_0$ of metal is
Which of the statements given below is incorrect ?
On heating which of the following releases ${CO_2}$ most easily ?
Reaction of carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is :
The boiling point of 0.2 mol kg$^{-1}$ solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case ?
The correct bond order in the following species is :
The angular momentum of electron in 'd' orbtial is equal to
Permanent hardness in water cannot be cured by :
Which one of the following alkaline earth metal sulphates has its hydration enthalpy greater than its lattice enthalpy?
Solubility of the alkaline earth?? metal sulphates in water decreases in the sequence :
The reaction is called :
What is the mass of the precipitate formed when 50 mL of 16.9% solution of $AgNO_3$ is mixed with 50 mL of 5.8% $NaCl$ solution ? (Ag = 107.8, N = 14, O = 16, Na = 23, Cl =35.5)
Which physical property of dihydrogen is wrong ?
Chlorine water on standing loses its colour and forms :
Addition of phosphate fertilisers to water bodies causes :
In the long form of the periodic table, the valence shell electronic configuration of $5s^2 5p^4$ corresponds to the element present in :
The least number of oxyacids are formed by :
Rachel Carson's famous book 'Silent Spring ' is related to