The vitamin containing a cobalt-cyanide linkage is:

The provided image shows chemical structures related to resonance and electronic effects. Identify the correct relationship or description for these structures.

Which property of water prevents significant changes in its temperature even when heat is lost or absorbed in the environment?

What kind of liquid is water at normal temperature?

Select the correct match for $X$ and $Y$.

Column $X$	Column $Y$
$(1)$ Starch	$(P)$ Found in animal skeletal tissues
$(2)$ Glycogen	$(Q)$ Stored food form in plants
$(3)$ Chitin	$(R)$ Provides strength in sclerenchyma
$(4)$ Lignin	$(S)$ Stored food form in animals

Which of the following statements is incorrect?