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The position of an element in the Periodic Table is determined by?
Which element contains the greatest number of moles?
The use of sulphur to vulcanize rubber is made to make it
The atomic number of iron is 56. The number of unpaired electrons in the Fe3+ ion is
Animal charcoal differs from wood charcoal in that it
Which statement BEST describes the process of oxidation?
20 cm\(^3\) of 0.09 mol dm\(^{-3}\) solution of tetraoxosuiphate (Vi) acid requires 30cm\(^3\) of sodium hydroxide solution for complete neutralization. The molar concentration of sodium hydroxide is [H = 1; S = 32; 0 = 16; Na = 23]