List of top Chemistry Questions on General Chemistry asked in Bihar Board XII

The electronic configuration of Cu2+ (Z = 29) is:
“Compounds of transition elements are paramagnetic and coloured.” Explain.
What are preservatives?
Pyrolusite is an ore of which of the following?
Which of the following is antioxidant?
Which of the following catalysts is used in the manufacture of NH$_3$ by Haber’s process?
The highest volume of which of the following gases would be adsorbed by 1 g of charcoal at 298 K?
Which of the following is a member of first transition series?
Which of the following is used as an antacid?
From which of the following is insulin secreted?
Which of the following carbohydrates is the most abundant in nature?
Which of the following disaccharides is present in milk?