Home › CBSE Class 10 › Science › class10_chem_reaction_types › Heating copper powder in air coats it with a lay…
Heating copper powder in air coats it with a layer that is:
AGreen
BBlack
CBlue
DBrown
Answer & Solution
Correct answer: B. Black
1. Oxygen is added to the copper.
2. Copper oxide is formed.
3. The coating is black.
_Source: NCERT Class 10 Science, Ch 1 'Chemical Reactions and Equations'_
Related questions
Chips packets are flushed with which gas to stop oxidation?Keeping food in which containers slows oxidation?Substances added to food to prevent oxidation are called:Fats and oils that have been oxidised are said to be:Which process damages car bodies, bridges and ships?Iron articles left for some time get coated with a powder that is:A substance that loses oxygen during a reaction is said to be:A substance that gains oxygen during a reaction is said to be: