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Chlorophyll is a naturally occurring chelate compound in which the central metal is:
Chlorophyll is used by plants to -
Which of the following is used in pencils?
Which of the following metals forms an amalgam with other metals?
Gas usually filled in electric bulb:
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is:
The property of a substance to absorb moisture from the air on exposure is called:
Galvanised iron sheets have a coating of:
Heavy Water is:
The elements common to all acids is:
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Chlorophyll is a naturally occurring chelate compound in which central metal is Magnesium.
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That's correct. An alloy with mercury is called amalgam
You are correct! helium is used as it is not as narcotic as nitrogen
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Galvanizing is a process of coating iron or steel with zinc in order to provide greater protection against corrosion for the iron or steel base.