Check sibling questions

Reaction of Metals with Oxygen

Metals react with Oxygen to produce metal oxide.

It is basic in nature


Reaction of Iron with Moist Air



Reaction of Copper with moist air



Reaction of Non-Metals with Oxygen

Non Metals react with oxygen to Produce Non Metal Oxide

It is acidic in nature





Why is Phosphorus not kept in open?

Phosphorus is a very reactive non metal.If it is kept in open air it will react with oxygen and catch fire.

Thus,Phosphorus is kept in water containers



NCERT Question 6 (d) -

Give reasons for the following :

(d) Sodium and potassium are stored in kerosene.

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NCERT Question 10 -

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.

(a) How will she find the nature of the gas ?

(b) Write down word equations of all the reactions taking place in this Process

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Reaction of Metals with Oxygen Metal + Oxygen Metal Oxide This is Basic in nature Example Magnesium + Oxygen (Mg) (O2) Magnesium Oxide (MgO) This Magnesium oxide is Basic in nature It turns red litmus paper blue Reaction of Iron with Moist air Iron + Oxygen + Water Iron Oxide (Fe) (O2) (H2O) (Fe2O3) Air with Moisture This is Rust This is basic in nature Reaction of Copper with Moist air Copper + Water + Carbon Dioxide + Oxygen Copper Hydroxide + Copper Carbonate (Cu) (H2O) (CO2) (O2) (Cu (OH)2) (CuCO3) Moist air This is the green coating deposited on surface of copper vessels This is basic in nature Reaction of Non-Metals with Oxygen Non-Metal + Oxygen Non-Metal Oxide This is Acidic in nature Example Sulphur + Oxygen Sulphur dioxide (S) (O2) (SO2) This Sulphur dioxide is Acidic in nature It turns blue litmus paper red

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo