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Q. Explain about frequency of Electromagnetic waves?
Electromagnetic waves all along with water waves and sound waves exhibit certain common characteristics. All waves consist of a series of crests as well as troughs that travel away from their source at a velocity that is determined by the nature of the wave and the material through which the wave passes. The rate of vibration of a wave is call its frequency and is defined as the number of waves that pass a given point per second. Wave frequency is expressed in hertz (Hz) one hertz equals one wave per second (s -1).
write short note on vulcanization?
Permanganate titrations - Oxidation reduction titrations These are titrations where potassium permanganate is utilized as an oxidising agent in acidic medium. The medium is org
Ask quThe maximum number of electrons which each sub-shell can occupy is 2(2l+1)
Chemical Properties Proteins - Salt formation (i) Salt formation : Due to existence of both -NH 2 and -COOH groups in proteins, they make salts along with acids and bases.
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Calculate the activity of nuclides: Problem: 100 mg piece of a gold ornament containing 10% copper as impurity was irradiated with thermal neutrons at 2.1×10 11 n/cm 2
Q. Objective of elements of group 16? You should be able to: • describe the occurrence, extraction and uses of the elements of Group 16, • describe the allotropic forms o
Q. What is the basic structure of Alkynes? Ans. Alcohols have the general chemical formula of ROH. The R stands for the rest of the molecule and is usually an alkyl group
A sample of gas occupies 10l under a pressure of 1atm. what will be its volume if the pressure is increased to 2atm ? assuming that temperature of the gas sample does not change
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