Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemistry in Everyday Life
Benzalkonium chloride is used in which industry?
1
Rubber industry
2
Detergent industry
3
Pharmaceutical industry
4
More than of the above
5
None of the above