Which of the following is used for the extraction of glue from bones?

When a mixture of methane and steam is passed over a nickel catalyst supported on alumina at $725\,^oC$,the product obtained is:

In which of the following reactions does hydrogen act as an oxidizing agent?

Calcium imide on hydrolysis will give gas $(B)$ which on oxidation by bleaching powder gives gas $(C)$. Gas $(C)$ on reaction with magnesium gives compound $(D)$. $(D)$ on hydrolysis gives again gas $(B)$. $(B)$,$(C)$ and $(D)$ are

Carbon monoxide is a neutral oxide of carbon,but it acts as a very strong field ligand and associates with metals to form complex compounds. These complex compounds are very useful and used in metallurgical processes. Water gas is a mixture of

Ortho-hydrogen and para-hydrogen resemble in which of the following properties?