Describe the differences between keywords and identifiers?

Differentiate “=” and “==”.

Assume a=10, b=15; What will be the value of a^b?

What is the difference between “Run time error” and “Syntax error”?

What are the differences between “Logical error” and “Syntax error”?

What is the use of a header file?

Why is main function special?

Write two advantages of using include compiler directive.

Write the following in real constants.
(i) 15.223
(ii) 211.05
(iii) 0.00025.

Evaluate the following C++ expressions where x, y, z are integers and m, n are floating point numbers. The value of x = 5, y = 4 and m=2.5;
(i) n = x + y / x;
(ii) z = m * x + y;
(iii) z *= x * m + x;