Hydrogen gas can be conveniently used as a fuel for running vehicles if it is absorbed at very low temperature by a substance only to be released at the temperature generated by the exhaust. What is that substance found in India? |
|||
(a) |
Hydrites |
(b) |
Coals |
(c) |
Soap stone |
(d) |
Resins |
Hydrogen gas can be conveniently used as a fuel for running vehicles if it is absorbed at very low temperature by a substance only to be released at the temperature generated by the exhaust. What is that substance found in India? |
|||
(a) |
Hydrites |
(b) |
Coals |
(c) |
Soap stone |
(d) |
Resins |
The one that is extensively used as a piezoelectric material is :
a. |
Quartz |
b. |
Amorphous silica |
c. |
Mica |
d. |
Tridymite |
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