Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Organic Chemistry
Which of the following is obtained on treating phenol with conc. HNO3 / H2SO4 mixture?
1
2
3
4
More than one of the above
5
None of the above