Question

Which of the following sets of substances represents mixtures only?Orange juice, sodium and hydrogen
Air, blood and sodium chloride
Brass, seawater and air
Gold, carbon and air​

Answer 1

Answer:

Mixtures : orange juice , sodium and hydrogen air , brass, carbon and air

hope it helps

Answer 2

Of the following sets of substances Brass, seawater and air represent mixtures only.

• Among the following given options it's only Brass , seawater and air that represent mixture. Rest of the options have metals and non-metals like pure substances so they can't be classified as mixtures.
• Brass is an alloy. Alloys are classified as mixtures as they show property of their constituents.
• Sea water is a mixture because apart from just salt and water there are many minerals and other impure substances in small amounts present in it.
• Air is a mixture of several gases.
• Hence, correct option is C. Brass, seawater and air