4. Heating of orthophosphoric acid to about 900°C, produces
o pvrophosphonc acid
o no change iii it
0 metaphosphoric acid
none of these
Ans: C
o pvrophosphonc acid
o no change iii it
0 metaphosphoric acid
none of these
Ans: C
ENGINEERING INTERVIEW QUESTIONS ANSWERS, CIVIL ENGINEERING INTERVIEW QUESTIONS, CIVIL ENGINEERING MCQS, MECHANICAL ENGINEERING INTERVIEWQUESTIONS, MECHANICAL ENGINEERING MCQS, ELECTRICAL ENGINEERING INTERVIEW QUESTIONS AND VIVA SEMINAR INTERVIEW QUESTIONS FOR ALL LAB VIVA QUESTIONS IN CSE, ECE, MECHANICAL ENGINEERING STUDENTS
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