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A metal surface is exposed to solar radiations:
(1) The emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations
(2) The emitted electrons have energy less than maximum value of energy depending upon intensity of incident radiation
(3) The emitted electrons have energy equal to energy of photos of incident light
(4) The emitted electrons have zero energy
Ans: The emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations
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formula of acetic acid
100 ch3-ch2-choh-ch2-ch2cl
Uses of Acetic anhydride (a) Acetic anhydride is used as an acetylating agent. (b) Acetic anhydride is used for the detection and estimation of hydroxyl and amino group.
how we synthesis picric acid why it required 1 hour for the reaction with HNO3,H2SO4 and show the mechanism of picric acid and uses of picric acid. and what is the role of HNO3,H2S
Describe the following observations: a. Lyophilic colloid is more stable than Lyophobic colloid. b. Coagulation takes place when sodium chloride solution is added to a collo
to study the presence of aroma taste,ph value and tannic acid of diffrent tea leaves
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