Brass is an alloy of
1 Nickel and copper
2 Zinc and copper
3 Nickel and zinc
4 Nickel and silver
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Science is both a process and product-Substantiate
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What are the important factors of cosmic rays?
A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation
Quartz crystals normally used in quartz clocks etc. is chemically 1 Sodium silicate 2 Germanium oxide 3 Silicon dioxide 4 None of these
Liquefied Petroleum Gas consists of mainly 1 Methane, ethane and hexane 2 Ethane, hexane and noname 3 Methane, butane and propane 4 Methane, hexane and nonane
NO OF PLANT IN ONGC
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which country is known as thunderbolt in the world
The inert gas which is substituted for nitrogen in the air, used by deep sea divers for breathing, is 1 Helium 2 Argon 3 Krypton 4 Xenon
Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes
Monazite is an ore of 1 Iron 2 Titanium 3 Thorium 4 Zirconium
Biological Sciences 
