An element reacts with oxygen to form oxide which dissolve in dilute hydrochloric acid.the oxide formed turns a solution of red litmus blue. Is the element a metal or a nonmetal? Explain with an example.
An element X on reacting with oxygen forms an oxide X2O. This oxide dissolves in water and turns red litmus blue. State whether element X is a metal or a non metal. Explain with proper example.
M is an element in the form of a powder. M burns in oxygen and the product obtained is soluble in water. The solution is tested with litmus. Write down only the word which will correctly complete each of the following sentences.
(a) If M is a metal, then the litmus will turn ...........
(b) If M is a non-metal, then the litmus will turn .........
(c) If M is a reactive metal, then ........... will be evolved when M reacts with dilute sulphuric acid.
(d) If M is a metal, it will form ........ oxide, which will form ....... solution with water.
(e) If M is a non-metal, it will not conduct electricity in the form of.........
An element burns in air to form an oxide.The aqueous solution of this oxide turns blue litmus paper red. State whether the element is a metal or non-metal.Name one such element.