An element X on reaction with O2 forms X2O. This oxide dissolves in water and turns blue litmus paper red. Predict the nature of the oxide. Is the element X metal or non-metal?
The oxide is acidic in nature as it has turned blue litmus paper red. Hence, Xis a non-metal.
Can you please give some examples providing balanced chemical equations.
The element is sulphur dioxide,therefore it shows acidic nature
Element X is a non metal ,since non metallic oxides form acids by reacting with water. And an acid turns blue litmus red. We know that while writing chemical formula the valancies of the elements are interchanged, so the element X has valency 1.Since the element has valency 1 it is one of the element of halide group.i.e group 17.IMG_20190127_073727|690x474
X is a Alkali metal as it can be lithium sodium
X will be definitely a non metal
X2O changes blue litmus to red (this shows that X2O is acidic in nature)
Oxides of non metals are acidic in nature
Hope it helps you …