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Which zone of a flame does a goldsmith used for melting gold and silver and why Brainly?
Answer: A goldsmith uses the non-luminous zone (outermost zone) of candle flame to melt gold and silver because it is the hottest part of the candle flame and has most temperature.
What is luminous zone?
Luminous zone: Luminous zone is bright and is the middle zone of candle flame. The temperature in this zone is moderate hot. It does not have a sufficient supply of oxygen. The colour of this zone is yellow. Dark Zone: The temperature of this zone is least hot.
What are different zones of candle?
The flame of the candle has three zones, the outer zone is blue, the middle zone is yellow and the inner zone is black.
Which zone of a flame does a goldsmith use for melting gold and silver?
outermost zone
Which zone of a flame does a goldsmith use for melting gold and silver and why? Answer: A goldsmith uses the outermost zone of a flame, which is non-luminous, to melt gold and silver as it is the hottest zone of the flame, having more temperature.
Which zone of a flame does a goldsmith use for melting gold and silver * 1 point?
The goldsmith uses the outermost zone of the flame to use for melting gold and silver because it is the hottest part of the flame and undergoes complete combustion.
What is the other name of non-luminous zone?
| Column I | Column II | |
|---|---|---|
| (a) | Hottest zone of a candle flame | Zone of unburnt wax vapours |
| (b) | Yellow zone of a candle flame | Non-luminous zone |
| (c) | Black innermost zone of the candle flame | Incomplete combustion zone |
Which zone of flame does a goldsmith use to make ornaments?
A goldsmith uses the non-luminous zone (outermost zone) of candle flame to melt gold and silver because it is the hottest part of the candle flame and has most temperature.
Which flame is used by goldsmith?
A goldsmith uses the non-luminous zone (outermost zone) of candle flame to melt gold and silver because it is the hottest part of the candle flame and has most temperature.
What is the Colour of non-luminous zone?
blue
Due to complete combustion, the outer zone is blue. This zone is the hottest in temperature when compared to the other zones. This blue coloured zone is the non-luminous part of the flame.
Why do we wrap a blanket around a person who catches fire?
When a fire blanket completely surrounds the person whose clothes caught fire, it seals the person’s body surface around the fire and cuts off the oxygen supply to the fire; thereby, putting out the fire . Thus, fire blanket acts as a fire extinguisher and stops the fire from spreading.