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The atomic radii of metals are usually
Which of the following ions has an electron configuration different from the other?
Which of the following electron configurations represents that of an atom in its ground state?
The number of orbitals in a p-sub level of an atom is
Ethanol reacts with concentrated tetraoxosulphate (VI) acid at a temperature above 170\(^0\)C to form
The saponification of an alkanoate to produce soap and alkanol involves
Carbohydrates are large molecules with the molecular formula C\(_x\)(H\(_2\)O)\(_y\). In which of the following pairs is x not equal to y?
The purest form of iron which contains only about 0.1% carbon is
Which of the following compounds will burn with a brick-red colour in a non-luminous Bunsen flame?