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30 KJ
1 KJ
39 KJ
29 KJ
The heat required to raise the temperature of body by 1 K is called
The high reactivity of fluorine is due to
The hottest part of the gas flame is known as
The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is
The hydronium ion is
The inert gas used as beacon light is
The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing is
The inert gases are _ in water.
The inexpensive and commonly used variety of glass is called soda glass. It is called so because
The ionic radii of N3-, O2-, F- and Na+ follows the order