For the following questions answer them individually

Which one of the following gases is reported to retard photosynthesis?
Consider two chemical reactions (A) and (B) that take place during metallurgical process:
(A) ZnCO$$_{3(s)} \xrightarrow{\Delta}$$ ZnO$$_{(s)}$$ + CO$$_{2(g)}$$
(B) 2ZnS$$_{(s)}$$ + 3O$$_{2(g)} \xrightarrow{\Delta}$$ 2ZnO$$_{(s)}$$ + 2SO$$_{2(g)}$$
The correct option of names given to them respectively is:
Spin only magnetic moment of an octahedral complex of Fe$$^{2+}$$ in the presence of a strong field ligand in BM is:
The major product (P) in the following reaction is:

In the above reactions, product A and product B respectively are:

Consider the above reaction, compound B is:
Bakelite is a cross-linked polymer of formaldehyde and:
Which one of the following statements is not true about enzymes?