What is the atomic number of Chromium?
...What is the atomic number of Chromium?
3.5
19
24
31
Correct answer is C
No explanation has been provided for this answer.
Charcoal is used in the decolourization of sugar because of its ...
Calculate the solubility in mol dm-3 of 40g of CuSO4 dissolved in 100g of water at 120°C? [Cu =...
Which of the following oxides can be reduced by hydrogen? ...
The mathematical expression of PH is ...
Which of the following metals does NOT form a stable trioxocarbonate (IV)? ...