1. Which one cannot be oxidized?
A. FluorideB. ChlorideC. BromideD. Iodide F2
2. Which of the following is correct in the flame test?
A. → golden yellow Ca2+B. → pale violet K+C. → bluish green Na+D. → brick-red Ba2+
3. Which antibiotic is used to treat cholera?
A. PenicillinB. TetracyclineC. VancomycinD. Polymixin
4. Groups pair having positive mesomeric effect- (+M)
A. ∖ /CO, −CNB. −NO2, −NH2C. −NH2, −NHCOCH3D. −NO2, −OH
5. Known as Sylvine-
A. NaClB. KClC. KNO3D. NaNO3
6. Which of the following is a toxoid vaccine?
A. TetanusB. PolioC. TyphoidD. Measles