if an element X with atomic number 13 combines with an el...
if an element X with atomic number 13 combines with an element Y whose atomic number is 8 the most likely formula of the compound formed between X and Y is?
XY
X2Y
XY2
X3Y2
X2Y3
Correct answer is E
Element X is aluminum of valency 3+
Element Y is oxygen of valency 2-
Their combination is Al2O3
The following salts will produce a gas on reacting with hydrochloric acid except ...
What is the molar mass of an alkyne with the formula Cx H 14? (H = 1, C = 12)...
A major source of oxide of nitrogen is from the burning of ...
The property used in the industrial preparation of nitrogen and oxygen from air is? ...
Hydrogen is readily released when dilute hydrochloric acid reacts with ...
What is the atomic number of Arsenic? ...
The property which makes alcohol soluble in water is the ...
Diamond is a bad conductor of electricity because its bonding electrons are used in ...