SSC MTS EXAM

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SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Identify each of the following as a pure substance or a mixture:(pasta and tomato sauce)
A
Pure Substance
B
Mixture
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Hence the combination of pasta and tomato sauce is classified as a mixture. B. Aluminum foil is composed of aluminum atoms. Hence it is classified as a pure substance.

Detailed explanation-2: -Examples of pure substances include iron, aluminum, silver, and gold. Mixtures: Substances that have two or more different particles are mixtures. Examples of mixture include the salt solution which is a ‘mixture’ of two components, salt, and water.

Detailed explanation-3: -Crude Oil-Mixture of some organic compounds, mainly hydrocarbons. Air-Mixture of different gases like nitrogen, oxygen, carbon dioxide, neon, and so on. Gunpowder-Mixture of potassium nitrate, sulfur, and carbon. More items

Detailed explanation-4: -Hydrogen gas. Gold metal. Sugar (sucrose) Baking soda (sodium bicarbonate) Ammonia. Diamond. Copper wire. Silicon chip. More items •30-Aug-2018

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