Classify the following as elements and compounds. Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium - Science

Classify the following as elements and compounds.

Water, Common salt, Sugar, Carbon dioxide, Iodine and Lithium

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Chapter 3: Matter Around Us - Evaluation [Page 39]

Chapter 3 Matter Around Us
Evaluation | Q V. 7. | Page 39

Classify the following substances into compounds and mixtures:

Give two applications of chromatography.

Name: a Liquid Non-metal

Name: the Hardest Naturally Occurring Substance

Give two examples of the following.
Non-metals which are lustrous

Answer the following question:
Why are copper and aluminium used to make electric wires?

Indicate whether the following statement is true or false:
All elements are artificially prepared

Select the correct answer to the statement given below:

The chemical name for dinitrogen oxide [N₂0].

Select the correct answer from A, B, C, D & E for the statement given below :

A non-metal that is lustrous.

Name the element which is used in toothpaste to strengthen our teeth.