What are compound radicals? Name any two with their formula.
b. Why is dissolving of sugar in water considered to be a physical change?
How is a stop watch different from a ordinary watch?
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ANSWER :
WHAT ARE COMPOUND RADICALS?
>> a radical is a kind of a molecule that contains an unpair electron in the atomic orbital and can exist independently.
NAME ANY TWO WITH THEIR FORMULA?
>> the formula for nitrogen is N2, that of oxygen is O2.
B NUMBER ANSWER :
Sugar dissolves in water is a physical change because in this change no new substances is formed and the process is reversible in which by vaporization followed by condensation and crystallization water and sugar can be separated.
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