Oxide of which of the following will turn red litmus blue?
Magnesium
Red litmus turns blue in the presence of a base. Metallic oxides are generally basic, while non-metallic oxides are acidic.
Magnesium is a metal; its oxide MgO reacts with water to form Mg(OH)2, a base that turns red litmus blue. Oxides of phosphorus (P2O5), sulphur (SO2/SO3) and carbon (CO2) are acidic and turn blue litmus red, so they fail this test. Hence the answer is Magnesium.
Metal oxides are ________ in nature.
Which base is present in soap?
Which of the following acids is present in ant bites?
Which base is present in lime water?
When we cut an onion, the vegetable emits an odour and our eyes tear up. Which of the following compounds is responsible for the tears and odour resulting from freshly cut onions?
Which of the following is also known as Carbolic Acid?
What is the name of the acid in an ant's sting?
pH of the human blood is ________.
What is the dominant chemical present in vinegar?
Which property helps in the separation of a homogeneous mixture into its constituents?
Acids are formed when-