Please answer these questions,,.,..,.,.,.,..,
Dear Student,
32.
Sodium is kept immersed in kerosene because it is highly reactive metal. If it is kept out from the kerosene oil it will react vigorously with oxygen and moisture that present in the air.
Hence, both assertion and reason are correct and reason is correct explanation of assertion.
33.
When acids react with metals they produce salts along with the formation of hydrogen gas. Also, when bases react with metals they also produce salts and form hydrogen gas.
Here, sodium hydoxide (NaOH) is a base so when it reacts with zinc (Zn) metal it will produce sodium zincate (Na2ZnO2) which is a salt and hydrogen gas (H2).
Hence, both assertion and reason are correcr but reason is incorrect explanation of assertion.
Kindly post the different question in different thread.
Regards
32.
Sodium is kept immersed in kerosene because it is highly reactive metal. If it is kept out from the kerosene oil it will react vigorously with oxygen and moisture that present in the air.
Hence, both assertion and reason are correct and reason is correct explanation of assertion.
33.
When acids react with metals they produce salts along with the formation of hydrogen gas. Also, when bases react with metals they also produce salts and form hydrogen gas.
Here, sodium hydoxide (NaOH) is a base so when it reacts with zinc (Zn) metal it will produce sodium zincate (Na2ZnO2) which is a salt and hydrogen gas (H2).
Hence, both assertion and reason are correcr but reason is incorrect explanation of assertion.
Kindly post the different question in different thread.
Regards