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Write the chemical features of alkali metals. |
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Answer» (I) All alkali metals react with water, liberating H2 and forming their hydroxides. 2M + 2H2O ---------->2MOH +H2 (II) Alkali metals tarnish in air due to formation of an oxide or hydroxide on their surface. 4Li +O2-------->2Li2 O 2Na +O2--------->Na 2O2 (iii)All alkali metals react with hydrogen to form ionic hydrides. 2M +H2---------->2MH |
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