Q. 865.0( 4 Votes )
Which of the following metal exists in the liquid state? A. Na
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Explain the following statements:
i. Most metal oxides are insoluble in water but some of these dissolve in water. What are these oxides and their solutions in water called?
ii. At ordinary temperature, the surface of metals such as magnesium, aluminium and zinc, etc. is covered with a then layer. What is the composition of this layer? State its importance.
iii. Some alkali metals can be cut with a knife.Xam idea - Science
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