Calcium and magnesium belong to the group of the periodic...
Calcium and magnesium belong to the group of the periodic table because both?
are metals
form cations
form colourless salts
have same number of valence electrons
Correct answer is D
No explanation has been provided for this answer.
When each of the nitrates of Potassium, Magnesium and iron is heated, ...
Ammonia gas is suitable for performing the 'Fountain' experiment because the gas is ...
An organic compound containing 40.1% carbon and 6.6% hydrogen has an empirical formula of? ...
Exhaust fumes discharged from a smoky vehicle gradually become invisible as a result of ...
CHCl3 + Cl2 → HCl + CCl4. The reaction above is an example of?...
In which order are the following salts sensitive to light? ...
Cu2S(g) + O2(g) → 2Cu + SO2(g) What is the change in the oxidation number of copper in the rea...
Which of the following gases will diffuse most rapidly? [H = 1.00, C = 12.0, O = 16.0, S = 32.0, ...