The substance used in cancer therapy is___________?
A. Fe
B. Co
C. Ni
D. Rn
Submitted by :- Jamil Ahmed
mnsoomro
If steel is heated to a temperature well below red heat and is then cooled slowly, the process is called_________?
Carbon in wrought iron is present as_________?
A. Silicon carbide
B. Iron carbide
C. Graphite
D. Partly as iron carbide and partly as graphite
Submitted by :- Jamil Ahmed
Stainless steel contains___________?
A. Fe+Cr+Ni
B. Fe+Ni+Cu
C. Fe+ Cr+Cu
D. Cu+C+Ni
Submitted by :- Jamil Ahmed
Chlorine Cl when attached to benzene has________?
A. +I and +R effect
B. -I and +R effect
C. +I and -R effect
D. -I and -R effect
Submitted by :- Jamil Ahmed
Which one of the following is most acidic?
The carbon-carbon bond strength is maximum in__________?
Which one of the following is caustic potash?
A. NaOH
B. KOH
C. NaCl
D. NaBH4
Submitted by :- Jamil Ahmed
Commercial detergents contain mainly _____________?
A. RCOON
B. RONa
C. RSNa
D. ROSO3Na
Submitted by :- Jamil Ahmed