For the following questions answer them individually
Identify the disease that is caused due to inadequate secretion of the hormone insulin from the pancreas?
Who showed that heating silver cyanide (an inorganic compound) with ammonium chloride (another inorganic compound) produced urea without the aid of any living organism or part of a living organism, in 1828?
Which state in India as per the 2021 Census has the lowest population Density per
$$km^{2}$$?
Which Schedule of the Indian Constitution divides the power between the Centre and the state in terms of the union, state and concurrent list?