List of top Chemistry Questions

The hybridization of S in SO$_3$ is
The most abundant noble gas in atmosphere is
The unit of specific conductance is
Which among the following aqueous solutions has the highest boiling point?
Which among the following is the strongest base?
The effective atomic number (E.A.N.) of cobalt in the complex ion [Co(en)$_2$Cl$_2$]$^+$ is
The oxidation state of Fe in K$_4$[Fe(CN)$_6$] is
Which of the following is the electronic configuration of Lanthanide elements?
Which of the following is the structural formula of hypophosphorous acid?
Ammonia can be dried by
Lutetium (Lu) is
Elements of which atomic numbers belong to 3d transition series?
Which of the following ions is diamagnetic?
Which of the following metals is not obtained by electrolysis?
The process of purification of metal represented by the following equation is called \[ \text{Ti} + \text{I}_2 \xrightarrow{773\,K} \text{TiI}_4 \xrightarrow{1675\,K} \text{Ti} + \text{I}_2 \]
The electronic configuration of copper (Z = 29) is
Which of the following oxides is paramagnetic?
Which of the following adsorptions forms multimolecular layer?
Impurities present in an ore are called
The process of smelting involves reduction of metal oxide with
The molecular weight of a gas is 32. If 0.5 moles of the gas occupy 22.4 liters at standard temperature and pressure (STP), what is the density of the gas?

One mole of a monoatomic ideal gas starting from state A, goes through B and C to state D, as shown in the figure. Total change in entropy (in J K\(^{-1}\)) during this process is ............... 

The number of chiral carbon centers in the following molecule is ............... 

Consider the following matrices A and B.
\[ A = \begin{pmatrix} 1 & 2 & 0 & 0 \\ 3 & 4 & 0 & 0 \\ 0 & 5 & 5 & 0 \\ 0 & 0 & 6 & 7 \\ 0 & 0 & 8 & 9 \end{pmatrix} \quad \text{and} \quad B = \begin{pmatrix} 10 & 11 & 0 & 0 & 0 \\ 12 & 13 & 0 & 0 & 0 \\ 0 & 0 & 4 & 0 & 0 \\ 0 & 0 & 15 & 16 & 0 \\ 0 & 0 & 17 & 18 & 0 \end{pmatrix} \]

If \( C = AB \), the sum of the diagonal elements of \( C \) is ..............

A tube fitted with a semipermeable membrane is dipped into 0.001 M NaCl solution at 300 K as shown in the figure. Assume density of the solvent and solution are the same. At equilibrium, the height of the liquid column \( h \) (in cm) is .........