Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Which of the following is an example of a mixture?
Salt (NaCl)
Water (H2O)
Iron (Fe)
Air
Air
A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs, and each component retains its own chemical identity. Air is the correct answer because it is a homogeneous mixture of various gases, including nitrogen, oxygen, argon, carbon dioxide, and trace amounts of others.
A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs, and each component retains its own chemical identity. Air is the correct answer because it is a homogeneous mixture of various gases, including nitrogen, oxygen, argon, carbon dioxide, and trace amounts of others.
Think of air like a fruit salad. Just as you can pick out individual pieces of fruit from the salad bowl, you can separate the gases in air (like oxygen and nitrogen) using physical processes like fractional distillation of liquid air.
MIX: M-ultiple substances, I-ndividual properties kept, X-tra easy to separate (physically).
N2тАЛ+O2тАЛ+Ar+CO2тАЛтЛптЖТAir тАФ Represents the physical composition of air as a mixture
In a mixture, the constituents are physically blended but not chemically bonded. This means they can be separated by physical methods such as filtration, distillation, or evaporation. Unlike pure substances (elements and compounds), mixtures do not have a fixed chemical formula and their composition can vary.
Elements (like Iron) and compounds (like NaCl, HтВВO) are pure substances.
Air is a mixture because its composition varies slightly based on location, humidity, and altitude.
Mixtures do not possess a fixed melting or boiling point.
Constituents can be separated by simple physical processes.
Properties of the mixture can be tuned by changing the ratio of components.
Lack of uniformity in heterogeneous mixtures.
Atmospheric air for respiration.
Alloys (like brass or steel) are solid mixtures with enhanced material properties.
Pure substances like Na┬аCl (Salt) have a definite chemical composition and fixed properties.
Iron (Fe) is an element, representing the simplest form of matter.
Water (H2тАЛO) is a chemical compound where hydrogen and oxygen are chemically bonded in a fixed ratio.
D is correct тАФ Air is an example of a mixture as it is a physical combination of various gases.
Always remember: if a substance has a consistent chemical formula (like H2тАЛO or Na┬аCl), it is a compound, not a mixture.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants