Answer: An array in C is a collection of elements of the same data type stored in contiguous memory locations.
Answer: You declare an array by specifying the data type of its elements and the array's name followed by square brackets containing its size, for example: int arr[5];.
Answer: The index of the first element in an array is always 0.
Answer: You access elements of an array using square brackets and the index of the element you want to access, for example: int x = arr[2];
Answer: The sizeof operator returns the size in bytes of its operand, so sizeof(arr) returns the total size in bytes of the entire array
Answer: You can initialize an array at the time of declaration by providing a comma-separated list of values enclosed in curly braces, for example: int arr[5] = {1, 2, 3, 4, 5};
Answer: The maximum number of elements an array can hold in C is determined by the size of the data type and available memory.
Answer: No, the size of an array cannot be changed after it is declared in C.
Answer: Multidimensional arrays in C are used to store data in multiple dimensions, such as matrices or tables.
Answer: You can pass an array to a function by specifying the array's name without brackets, which acts as a pointer to the first element of the array.