Question: I am coming from C language

In book of Python it is given

among escape sequence

\ - New line in a multi-line string

\n - Line break

I am confused and unable to differentiate between the two.

Answer: 
\ - New line in a multi-line string
-----------------------------------

It is used for splitting a string which has a vast number of characters into multi lines as it is inconvenient to write in a single line.
This is something that has effect in the code only.

\n - Line break
---------------

This one on the other hand is a typical line break statement for printing something in a new line. The same thing we use in C and C++ languages.
this is something that has effect in the output.
With "\" you can change line as you write your code. What I mean is that if you write a long line of code and you want to change line to see what you type.
For example :

`print("This is a demonstration of backslash.")` 
is the same as writing :

`print("This is a demonstration \
of backslash")`

On the other hand with "\n" you can change line in what you want to print. For example, when you write:`print("this is an \nexample")`, it will print "this is an"(changes line) "example".