Question

a glowing wooden splinter is extinguished when it is put into a test tube containing zinc that are heated. explain this situation ?

Answer 1

A glowing wooden splinter is extinguished when it is put into a test tube containing zinc that are heated . Reason behind this :

• The gas that is evolved must be carbon dioxide because it is a good fire extinguisher.
• for the same reason , glowing wooden splinter will extinguish the fire.
• So the salt which is heated must be a carbonate salt with Zinc.

Balance chemical reaction is as follows:

               Δ

ZnCO3(S) ----------> ZnO(s) + CO2 ↑

Answer 2

Answer:

Explanation:

glowing splinter produce hydrogen when heated , so hydrogen is a good fire extinguisher. So hydrogen will extinguish the heated zinc