I. Identify the odd one out with reasons.1 . Mercury , gold , brass , nitrogen .2 . Lemon juice , carbon , brass , milk .3 . Soil , sea water , air , coal .4. Calcium carbonate , oxygen , copper sulphate , calcium oxide .II . Define the following .1 . Element2 . Compound3 . Mixture4 . Colloid5. SuspensionIII . Name the techniques to separate1 . Butter from curd2 . Salt from sea water
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1. Brass, because it is an alloy and others are single elements.
2. Carbon, because it is an element and others are mixtures ofvarious elements.
3. Coal.
4. Oxygen, because it is an element and the others are compound.
Element- An element is a pure substance, which cannot be decomposed through any chemical reaction.
Compound- A compound is any substance that is made up of two or more elements.
Mixture- A mixture contains two or more substances that are not chemically bonded together.
Colloid- A colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.
1. Brass, because it is an alloy and others are single elements.
2. Carbon, because it is an element and others are mixtures ofvarious elements.
3. Coal.
4. Oxygen, because it is an element and the others are compound.
Element- An element is a pure substance, which cannot be decomposed through any chemical reaction.
Compound- A compound is any substance that is made up of two or more elements.
Mixture- A mixture contains two or more substances that are not chemically bonded together.
Colloid- A colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.
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gold is a odd man out rellay. I am correct
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