General Knowledge :: Chemistry
- Which of the following is not a method of preparing oxygen?
- Which one of the following statements is not correct? Vulcanisation of rubber makes it
- The compounds formed when hydrogen combines with p-block elements are called
- In vulcanisation process, rubber can be hardened by adding
- The substance that is added to make natural rubber strong and more bouncy is
- In arc welding, Argon is used because of its
- An inert gas mixed with oxygen given to patients suffering from restricted breathing is
- Which of the following elements is obtained from seaweeds ?