List of top Chemistry Questions

Which quantum number provides information about the shape of an orbital?
The maximum number of electrons present in an orbital with \(n = 4,\ l = 3\) is
Which of the following elements are arranged in the correct order of their electron gain enthalpies?
Identify the major product from the following reaction sequence:
the major product from the following reaction sequence
Identify the major product formed from the following:
the major product formed from the following
Identify P and Q respectively of the following reaction:
P and Q respectively of the following reaction
Identify the correct trend of acidic strength for the given alcohols:
correct trend of acidic strength for the given alcohols:
Which of the following can undergo disproportionation reaction on heating with Conc. Alkali?
Which of the following is Indian saltpetre?
In the following unbalanced reaction, the product formed is:
NaAlO$_2$ + Al(OH)$_3$ + H$_2$O $\rightarrow$ ?
The correct statements with respect to dialysis of colloidal solution are:
I. Colloidal particles can pass through the membrane
II. Animal bladder can be used as membrane
III. Cellophane is not used as membrane
IV. Ions and small molecules can diffuse through membrane into water
The outer electronic configuration of \(\text{Pd}^{2+}\) is
The IUPAC name of the following complex is \([Co(NH_2CH_2CH_2NH_2)_2Br_2]Br\)
Assertion (A): Finely divided charcoal can act as an adsorbent
Reason (R): Finely divided material has small surface area
The molality and molarity of a solution of glucose in water which is labeled as 10% (w/w) are respectively (density of solution = 1.2 g/mL)
A cubic lattice has A atoms at the body center, B atoms at the corners, C atoms at half of the face centers. The formula of the lattice is
If the rate of disappearance of N$_2$O$_5$ in the following reaction is 1.2 $\times$ 10$^{-5}$ mol L$^{-1}$ s$^{-1}$, the rate of production of NO$_2$ (in mol L$^{-1}$ s$^{-1}$) is
2N$_2$O$_5$ (g) $\rightarrow$ 4NO$_2$ (g) + O$_2$ (g)
The ratio of effective number of atoms in a unit cell of fcc and bcc lattices is
The energy conversion involved in a galvanic cell is
1.8 g of glucose (molar mass 180 g/mol) is dissolved in 0.1 kg of water. The freezing point of the solution (in °C) is
(K$_f$ for water = 1.86 K kg mol$^{-1}$)
The major product ‘B’ of the following reaction sequence is
major product ‘B’ of the following reaction sequence is
The conjugate base of NH$_4^+$ is
Observe the following statements:
Statement A: In general, the ionization potential value decreases on moving down in the group.
Statement B: The 1\textsuperscript{st} ionization potential of sodium is greater than that of potassium.
Correct answer is
The bond order values of anions of sodium peroxide and potassium super oxide are respectively
The percentage of abundance of three elements X, Y and Z in the earth’s crust are about 27.7, 8.3 and 46.0 by mass respectively. X, Y and Z are