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प्रश्न
Give reasons for the following:
oxygens finds utility in welding & cutting of metals.
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उत्तर
Oxygen finds utility in welding and cutting of metals because of Oxy-acetylene flame provides temperature aroud 3000° C and oxy-hydrogen flame provides temperature around 2800°C.
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संबंधित प्रश्न
A chemical called oxygenated water.
Two substances which undergo rapid oxidation.
Why is oxygen collected by downward displacement of water?
Why is potassium chlorate not used for laboratory preparation of oxygen ?
How is oxygen naturally renewed in air ?
Fill in the blank:
Manganese dioxide acts as a _________.
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
Give balanced equation to obtain oxygen from Silver oxide.
(a) Starting from hydrogen peroxide how is oxygen gas prepared in laboratory?
(b) What is the function of manganese dioxide?
(c) Write fully balanced equation for the liberation of oxygen from hydrogen peroxide.
(d) Why is the above method preferred to any other method?
Write the reaction of oxygen with non–metals.
