State of the following formula of a compound is incorrect. Incorrectly write the correct formula. Ca2(PO4)3

State of the following formula of a compound is incorrect. Incorrectly write the correct formula.

Mg(SO₄)₂

एक पंक्ति में उत्तर

Mg(SO₄)₂

Correct formula – MgSO₄

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अध्याय 1: The Language of Chemistry - For Additional High Order Thinking Questions [पृष्ठ १८]

अध्याय 1 The Language of Chemistry
For Additional High Order Thinking Questions | Q 3. 2. F. | पृष्ठ १८

Name the elements water is made of. What are the valencies of these elements ? Work out the chemical
formula for water.

If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.

(a) Write the symbols/formulae of two simple ions and two compound ions (or polyatomic ions).

Give the formula and valency of:
aluminium ………………. .

Fill in the blank:

Formula of iron (ill) carbonate is _____ .

Give the empirical formula of : Benzene C₆H₆

Match the following:

Column A	Column B
(a) Pb(NO₃)₂	(i) rotten eggs smell
(b) CO₂	(ii) burns with a pop sound
(c) (NH₄)₂Cr₂O₇	(iii) the suffocating smell of sulphur
(d) HCI	(iv) lime water turns milky
(e) NO₂	(v) crackling sound
(f) O₂	(vi) residue swells up
(g) H₂	(vii) brown gas
(i) H₂S	(viii) supports combustion
(j) SO₂	(ix) fumes with NH₃ solution

Name the element in the compound and give the formula of the following compound:

Nitric acid

Name the element in the compound and give the formula of the following compound:

Carbonic acid

Name the element in the compound and give the formula of the following compound:

Green vitriol