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Scientific Facts - 6

1.     The charcoal used to de-colourise  raw sugar is - Wood Charcoal
2.     The Central Processing Unit (CPU) is consist of - Control Unit, ALU & Primary Storage
3.     The capacity of a battery is given in terms of - Ampere-hour
4.     The average salt content in the sea water is generally about - 3.5%
5.     The air-fuel ratio of the petrol engine is controlled by – Carburetor
6.     Tetraethyl lead is used as - Petrol Additive
7.     Teflon is the material all the - Non-stick pans are quoted with.
8.     Swimming is possible on account of - Newton's Third Law Of Motion
9.     The most important ore of Aluminium – Bauxite
10.  The most abundant metal in the earth’s crust is – Aluminium
11.  The maximum strength of Lok Sabha is – 552
12.  The major ingredient of leather is – Collagen
13.  The gas used to extinguish fire is - Carbon Dioxide
14.  The gas liberated during the reaction of copper with dilute nitric acid is – None
15.  The filament, i.e. the glowing part of the bulb is made up of – Tungsten
16.  The EPROM stands for - Erasable Programmable Read Only Memory 
17.  The element present in the largest amount in rocks and minerals is – Silicon

18.  The element common to all acids is – Hydrogen
19.  The electrical switch is put in the - Live wire
20.  Sun looks elliptical during sun rise and sun set due to – Refraction
21.  Name the chemical assed to make tooth pastes white - Titanium dioxide


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