C Language MCQ - English
Which of the following cannot be a variable name in C?
volatile
true
friend
export
Answer : A
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1) A constant cannot be used except:
For assigning initial value to a variable
With ++ operator
As a formal argument
On LHS of an assignment operator
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2) In case of ordinary int variables:
The leftmost bit is reserved for sign
The rightmost bit is reserved for sign
No bit is reserved for sign
None of the above
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3) Which of the following is true for variable names in C?
They can contain alphanumeric characters as well as special characters
It is not an error to declare a variable to be one of the keywords(like goto, static)
Variable names cannot start with a digit
Variable can be of any length
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4) What is the problem in following variable declaration?
float 3Bedroom-Hall-Kitchen?;
The variable name begins with an integer
The special character ‘-‘
The special character ‘?’
All of the mentioned
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5) Which of the following cannot be a variable name in C?
