Advertisements
Advertisements
प्रश्न
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen is a strong reducing agent.
विकल्प
Pb
Na
S
Cl
Advertisements
उत्तर
Na
APPEARS IN
संबंधित प्रश्न
Explain reduction in terms of gain or loss of oxygen with one example.
When the positive charge on an ion increases or the negative charge on them decreases it is called as _______.
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Oxidation means losing electrons then what is reduction?
Identify the oxidising agent (oxidant) in the following reactions
`2"Mg" + "O"_2 -> 2"MgO"`
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
Silver metal does not show any change
Explain this observation giving suitable reason.
Mention some oxidation reactions that occur in daily life.
Choose the odd one out and write the reason:
What are redox reactions? Give examples.
Define oxidation number.
A reddish brown metal used in electrical wires when powdered and heated strongly turns black. When hydrogen gas is passed over this black substance, it regains its original colour. Based on this information answer the following questions:
- Name the metal and the black substance formed.
- Write balanced chemical equations for the two reactions involved in the above information
