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Question
Write the molecular formulae of compound hydrogen sulphide.
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Solution
Compounds Hydrogen sulphide is formed of elements hydrogen (H), Sulphide (S).
Symbolic Combining Power :
Formula is H2S
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Complete the table
| Compound | Constituent elements |
| Sodium carbonate | Sodium, Carbon. Oxygen |
| Water | |
| Calcium oxide | |
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The other name for potassium hydroxide is caustic potash.
