Answer Posted / guest
They are made of graphite. (They are NOT made of lead).
| Is This Answer Correct ? | 8 Yes | 2 No |
Post New Answer View All Answers
What is specific conductivity?
Mention a few application of cod test in environmental engineering practice.
State beer’s law.
State lambert’s law.
Why is acetone used for cleaning viscometer?
Why is sulphuric acid added during the preparation of standard fas solution?
Explain the structure of a dna molecule?
How are ph and pka related?
What is the min constitutes of haematite ore?
What is phase transfer catalyst?
What is blank solution?
Why is ammonia solution added while preparing edta solution?
What is meant by ph of a solution?
Why ph scale range is 14? Why it is not less or not greater than 14?
Explain substituted hydrocarbon?