List of top Chemistry Questions

How many electrons, protons and neutrons are present in Y\(^+\), if atomic number of Y is 19 and mass number of Y is 39 :
Dry ice on heating produces :
At higher altitude the boiling point of liquid :
If K, L, M, N shells of an atom are full, the total number of electrons in that atom are :
The process of evaporation causes :
Number of \(\text{H}_2\text{O}\) (water) molecules in a drop of water weighing 0.5 g is :
Which of the following has highest intermolecular force of attraction ?
An element Z has valency equal to 3, what will be its formula with sulphate ions :
The hot food prepared in the kitchen can be smelt outside the house because of :
Which among the following shows Tyndall effect ?
The group having triangular planar structures is :
The electron in the hydrogen atom undergoes transition from higher orbitals to orbital of radius $211.6\, pm$. This transition is associated with
Match the interhalogen compounds of column I with the geometry in column II and assign the correct code:
Column IColumn II
(a)XX'(i)T-shape
(b)XX'3(ii)Pentagonal bipyramidal
(c)XX'5(iii)Linear
(d)XX'7(iv)Square-pyramidal
 (v)Tetrahedral
In which pair of ions both the species contain S – S bond?
Which one is the most acidic compound?
Identify A and predict the type of reaction
Identify A and predict the type of reaction
The species, having bond angles of 120° is
Which one is the wrong statement?
Pick out the correct statement with respect \([Mn(CN)_6]^{3–}\) :
Which of the following reactions is appropriate for converting acetamide to methanamine?
The correct order of the stoichiometries of \(AgCl\) formed when \(AgNO_3\) in excess is treated with the complexes : \(CoCl_3.6NH_3, CoCl_3.5NH_3, CoCl_3.4NH_3\) respectively is
Which of the following is dependent on temperature?
Which one of the following statements is not correct?
The equilibrium constants of the following are.
\(N_2+3H_2⇋NH_3\)     \(K_1\)
\(N_2+O_2⇋2No\)    \(K_2\)
\(H_2+\frac 12O_2⇋H_2O\)    \(K_3\)
The equilibrium constant \((K)\) of the reaction:
\(2NH_3+\frac 52O_2⇋2NO+3H_2O\)
will be
Which of the following statements is not correct?