List of top Chemistry Questions asked in Bihar Board Class XII

The unit of specific conductance is
Which among the following aqueous solutions has the highest boiling point?
The number of unpaired electrons in one molecule of liquid oxygen is
The electromotive force of the following cell is Zn$|$Zn$^{2+}$ (1M) $||$ Fe$^{2+}$ (1M) $|$Fe E$^0$ Zn$^{2+}$|Zn = -0.76 V, E$^0$ Fe$^{2+}$|Fe = -0.44 V
The hybridization of S in SO$_3$ is
The maximum covalency of nitrogen is
The most abundant noble gas in atmosphere is
Which of the following compounds can be coloured?
The oxidation state of Fe in K$_4$[Fe(CN)$_6$] is
The effective atomic number (E.A.N.) of cobalt in the complex ion [Co(en)$_2$Cl$_2$]$^+$ 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
Which among the following is the strongest base?
Which of the following ions is diamagnetic?
Lutetium (Lu) is
Elements of which atomic numbers belong to 3d transition series?
Which of the following oxides is paramagnetic?
The electronic configuration of copper (Z = 29) is
The process of purification of metal represented by the following equation is called \[ \text{Ti} + \text{I}_2 \xrightarrow{773\,K} \text{TiI}_4 \xrightarrow{1675\,K} \text{Ti} + \text{I}_2 \]
Which of the following metals is not obtained by electrolysis?
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