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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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5. Compounds and elements: choose the correct option from the given.

Choose the correct answer:

1. Molecules of compounds contain atoms from two or more separate elements. From the below options which of the following is a molecule.

Neon
Methane
Helium

2. Water is made up of two elements __________ and __________.

Hydrogen and Oxygen
Chlorine and Bromine
Oxygen and Chlorine

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