The source of vitamin,whose deficiency causes scurvy is

The deficiency of vitamin $(X)$ causes convulsions. Source of $X$ is $Y$. What are $X$ and $Y$?

Which of the following $B$ group vitamins can be stored in our body?

Which of the vitamins given below is water soluble?

The deficiency of vitamin $C$ causes

Which of the following statements are correct?
$a$. Deficiency of vitamin $K$ results in increased blood clotting time.
$b$. The sources of vitamin $B_2$ are milk and liver.
$c$. Hexapeptide has six peptide bonds.
$d$. Improper functioning of adrenal cortex results in hypoglycemia.