Related Questions

The repeating units of PTFE are
A Cl2CH = CH3
B F2C = CF2
C F3C = CF3
D FClC = CF2
Poly tetra flouro ethylene (PTFE) is known as
A Dacron
B Teflon
C Bakelite
D Celluloid
Find out which quotation parts of the following sentences has an error. In recent 'years', automobile emissions 'have disfigured' stone 'carvings', corroded bronze monuments, and 'soil' ancient buildings.
A years
B have disfigured
C carving
D soil
Rubber lined vessels are corroded by the action of
A Aqua regia
B Chloroform
C Sulphuric acid (95%)
D All of the above
Silver gets corroded due to ________ in air.
A Oxygen
B Hydrogen Sulphide
C Carbon dioxide
D Nitrogen
Gunmetal and bronze are not corroded by the action of
A Wet chlorine
B Synthetic detergent solution
C Hydrochloric acid (10%)
D Nitric acid (
Polythene (low or high density) containers are not corroded by
A Sulphuric acid (10%) at room temperature
B Nitric acid (95%) at room temperature
C Sulphur trioxide at 60°C
D Any of these
Glass is corroded by
A Fluorine (dry or wet)
B Sulphuric acid
C Phosphoric acid
D None of these
Graphite is corroded by
A Sulphuric acid (10%)
B Sea water
C Hydrochloric acid
D None of these
Stainless steel is not corroded by
A Hydrochloric acid (10%)
B Nitric acid (10%)
C Sulphuric acid (10%)
D Saturated brine

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