Advertisements
Advertisements
Question
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen is a strong reducing agent.
Options
Pb
Na
S
Cl
Solution
Na
APPEARS IN
RELATED QUESTIONS
Why is photosynthesis considered an endothermic reaction?
Fill in the following blanks with suitable words:
The addition of hydrogen to a substance is called ........ whereas removal of hydrogen is called .......
Give one example of an oxidation-reduction reaction which is also a combination reaction.
Define oxidation.
Give the general group study of hydrogen with reference to
reducing power
Complete and balance the following equation:
H2 + S → ___________
Find the oxidation number of the elements in the following compounds.
- C in CO2
- Mn in MnSO4
- N in HNO3
Which among the following are physical or chemical change?
Burning of Liquefied Petroleum Gas (LPG)
Write a short note on oxidizing and reducing agents.
When hydrogen gas is passed over black copper oxide, a reddish-coloured layer of copper is formed.
Answer the questions that follow based on this reaction.
- Write the equation.
- What type of reaction is it?
- Complete the blanks:
In this reaction, an oxygen atom goes away from CuO (copper oxide), which means that ______ of copper oxide takes place, whereas a hydrogen molecule takes up an oxygen atom and water (H2O) is formed, meaning ______ of hydrogen takes place.
