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Teflon
PVC
black paint
polystyrene
Monazite is an ore of
Carbon diamond and graphite are together called
Potassium nitrate is used in
Permanent hardness of water may be removed by the addition of
Soda water contains
The most important ore of aluminium is
Most soluble in water is
Which of the following was to be discovered first in the chromospheres of the sun
Which of the following is in liquid form at room temperature
Sodium metal is kept under