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What is the function of SnCl2 and HgCl2 in estimation of iron from plain carbon steel?
function of SnCl2 is that it acts as a reducing agent to reduce FeCl3 to FeCl2 and function of HgCl2 is to oxidize SnCl2 to SnCl4. total iron is determined after reducing ferric iron to ferrous state.
Function of mortar?
Mortar, in brickwork and stone work is a mix of cement, lime and sand, mixed with water to make a binding agent to hold the bricks or stones together.
When a function is used as an argument in another function?
It is called callback function. For an example see the qsort function.
Why a function is not defined in to another function?
A function is not deigned in to another function. It is because that would lead to dependency injection.
Can you declare a function in the body of another function in c language?
yes, we can not declare a function in the body of another function. but if we declare a function in the body of another function then we can call that very function only in that particular function in which it is declared; and that declared function is not known to other functions present in your programme. So if a function is required in almost all functions of your programme so you must declare it outside the main function i.e in the beginning of your programme.
