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प्रश्न
Compare hydrogen with alkali metals on the basis of:
Oxide formation
उत्तर
Hydrogen burns in oxygen to form its oxide. It burns with a pop sound.
2H2 + O2 → 2H2O
Alkali metals also burn vigorously when heated in oxygen to form their respective oxides.
Lithium forms monoxide.
4Li + O2 → 2Li2O
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संबंधित प्रश्न
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{4Na(s) + O2(g) -> 2Na2O(s)}\]
Explain the following in term Oxidation of gain or loss of oxygen with two example.
Explain reduction in terms of gain or loss of oxygen with one example.
Define reduction.
Define redox reaction.
Identify from the reaction the reactants that undergo oxidation and reduction.
2Mg + O2 → 2MgO
Explain the term oxidation in term of addition and removal of oxygen/hydrogen with a suitable example.
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen is a strong reducing agent.
Identify the oxidising agent (oxidant) in the following reactions.
`"CuO" + "H"_2 -> "Cu" + "H"_2"O"`
Zinc liberates hydrogen gas when reacted with dilute hydrochloric acid whereas copper does not. Explain why?
