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
Hydrogen burns with a ______ flame and ______ sound is heard.
State, giving reason, whether the substances printed in bold letters have been oxidized or reduced.
Cl2 + H2S → 2HCl + S
Name:
a substance that oxidizes concentrated HCl to chlorine.
Complete and balance the following equation:
H2 + S → ___________
State what is reducing agent. Give an example of oxidising agent in the gaseous, liquid, and solid form.
Identify the oxidising agent (oxidant) in the following reactions
`"CuSO"_4 + "Zn" -> "Cu" + "ZnSO"_4`
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.
______ is a metal that has a high resistance to corrosion.
Find the oxidation number of the element in the following compound.
Zn in ZnSO4
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
