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प्रश्न
Reacting with water, an active metal produces
विकल्प
oxygen
nitric acid
a base
none of these
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उत्तर
a base
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संबंधित प्रश्न
Why is photosynthesis considered an endothermic reaction?
The addition of hydrogen to a substance is called ______ whereas removal of hydrogen is called ______.
Is oxidation an exothermic or an endothermic reaction?
Define reduction.
Name:
a substance that will reduce aqueous Iron(III)ions to iron(II)ions.
\[\ce{MnO2 + 4HCl -> + 2H2O + Cl2}\]
Identify the substance oxidized in the above equation.
Which among the following are physical or chemical change?
Curding of milk
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
Some bubbles of a gas are seen when lead (Pb) is reacted with the acid.
Explain this observation giving suitable reason.
Find the oxidation number of the element in the following compound.
Mg in MgO
In the redox reaction:
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
