Bell metal is an alloy of
A). Nickel and Copper
B). Zinc and Copper
C). Brass and Nickel
D). Tin and Copper
1. Which among the following elements is found in maximum percentage in the human body ?
2. The important ore of aluminium is
3. The constituents of automobile exhaust that can cause cancer is are :
4. A pond of water appears less deep due to
5. In an atomic nucleus, neutrons and protons are held together by:
6. When a person sitting on a swing stands up on the swing the frequency of oscillation
7. Bhopal gas tragedy is associated with leakage of
8. Which one of the following elements is used in the manufacture of fertilizers?
10. In human, increased heat production is achieved most rapidly by increase the activity of the