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Q. Hypothesis on chlorofluorocarbon?
A hypothesis is a probable explanation for what has been observed. Based on the explanation of ozone thinning and CFC build-up in the chemists Mario Molina, the atmosphere and F. Sherwood Rowland hypothesized that CFCs break in the atmosphere due to the Sun's ultraviolet rays. They additional hypothesized that a chlorine particle produced by the breakdown of CFCs could break down ozone.
Q. How to determine wavelength of electromagnetic waves? The frequency as well as velocity of a wave determines its wavelength the distance between equivalent points on a con
Borazole is very stable because it is aromatic; each nitrogen contributes two p electrons and each boron contributes zero electrons, for a total of six p electrons in the aromatic
characteristic of solvents
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Properties of Detergents - Oils and Fats Detergents are superior cleansing agents due to following properties. (i) These can be employed both in soft and hard waters as the
The structure of spiropentadiene The structure of spiropentadiene is shown below; it undergoes a Diels-Alder reaction with two molar equivalents of 1,3-cyclopentadiene. Spirope
The power plants at Geysers use a dry steam cycle. The steam enters the turbine at 250 o C and 30 bars represented by the point 1 in the steam h-s diagram here below. At the outlet
what is resonance effect? describe its application and its types?
write a note on the oxide of 3d transition metal
Delocalisation of electrons in conjugated system is called resonance. For example there is delocalisation of electrons in benzene ,hence we write kekule structure for benzen.
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