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pH of 1-6
nitrogen
sulphur
chlorine
All isotopes of the same element have
All pottery made from common clay and which are not covered with glaze are called
Alloy steel containing chromium to resist rusting is known as
Alloys in which mercury is one of the metals are called
Aluminium can be purified by
Aluminium is extracted from bauxite
Aluminium salt commonly used to stop bleeding is
Aluminium surface are often anodised. This means the deposition of a layer of
Ammonial is a mixture of
Among the following the maximum covalent character is shown by the compound