Q. Halides of alkaline earth metals from hydrates such as MgCl2. 6H2O, CaCl2. 6H2O, BaCl2. 2H2O and SrCl2. 2H2O. This shows that halides of group 2 elements
Q. Chemical A is used for water softening to remove temporary hardness. A reacts with Na2CO3 to generate caustic soda. When CO2 is bubbled through A, it turns cloudly. What is the chemical formula of A
Q. In the Down’s method for the extraction of sodium, the melting point of the electrolyte is lowered by adding –
Q. In India at the occasion of marriages, the fire works used give green flame. Which one of the following radicals may be present ?
