Statement (iv) is true. Statements (i), (ii) and (iii) are false. Elements contain identical atoms, compounds contain atoms of different elements and nitrogen gas exists as diatomic molecules with two atoms.
Choose the correct statement(s) and correct the false statement(s). (i) Elements are made up of molecules and compounds are made up of atoms. (ii) The molecule of a compound is always made up of two or more atoms of the same kind. (iii) One molecule of nitrogen gas contains three nitrogen atoms. (iv) Water is made of two hydrogen atoms, covalently bonded with one oxygen atom.
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Statement (iv) is correct because water contains two hydrogen atoms bonded covalently to one oxygen atom. Statement (i) is false because elements consist of identical atoms, whereas compounds consist of combined atoms. Statement (ii) is false because compound molecules contain different types of atoms. Statement (iii) is false because a molecule of nitrogen gas contains two nitrogen atoms, not three.
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