Write the formulae of the following compounds. Also name the elements present in them.
(a) Water
(b) Ammonia
(c) Methane
(d) Sulphur dioxide
(e) Ethanol

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Solution

Compound Formula Elements present

(a) Water H₂O Hydrogen(H) and Oxygen(O)

(b) Ammonia NH₃ Nitrogen(N) and Hydrogen(H)

(c) Methane CH₄ Carbon(C) and Hydrogen(H)

(d) Sulphur dioxide SO₂ Sulphur(S) and Oxygen(O)

(e) Ethanol C₂H₅OH Carbon(C), Hydrogen(H) and Oxygen(O)

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	Compound	Formula	Elements present
(a)	Water	H₂O	Hydrogen(H) and Oxygen(O)
(b)	Ammonia	NH₃	Nitrogen(N) and Hydrogen(H)
(c)	Methane	CH₄	Carbon(C) and Hydrogen(H)
(d)	Sulphur dioxide	SO₂	Sulphur(S) and Oxygen(O)
(e)	Ethanol	C₂H₅OH	Carbon(C), Hydrogen(H) and Oxygen(O)

Write the formulae of the following compounds. Also name the elements present in them. (a) Water (b) Ammonia (c) Methane (d) Sulphur dioxide (e) Ethanol

Compound Formula Elements present (a) Water H2O Hydrogen(H) and Oxygen(O) (b) Ammonia NH3 Nitrogen(N) and Hydrogen(H) (c) Methane CH4 Carbon(C) and Hydrogen(H) (d) Sulphur dioxide SO2 Sulphur(S) and Oxygen(O) (e) Ethanol C2H5OH Carbon(C), Hydrogen(H) and Oxygen(O)

Write the formulae of the following compounds. Also name the elements present in them.
(a) Water
(b) Ammonia
(c) Methane
(d) Sulphur dioxide
(e) Ethanol

Compound Formula Elements present

(a) Water H₂O Hydrogen(H) and Oxygen(O)

(b) Ammonia NH₃ Nitrogen(N) and Hydrogen(H)

(c) Methane CH₄ Carbon(C) and Hydrogen(H)

(d) Sulphur dioxide SO₂ Sulphur(S) and Oxygen(O)

(e) Ethanol C₂H₅OH Carbon(C), Hydrogen(H) and Oxygen(O)