Question

Which of the following identifier names are invalid and

why?

a) Serial_no. e) Total_Marks

b) 1st_Room f) total-Marks

c) Hundred$ g) _Percentage

d) Total Marks h) True
​

Answer 1

Answer:

Serial_no.

1st_Room

total-Marks

Hundred$

Total Marks

True  

Explanation: Identifiers should contain both symbols and alphabets together. In option a since there was a full stop in the end, it became invalid. Option b is because identifiers can't start with a number. The other options have mostly alphabets only

Mark as brainliest.