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Q. Illustrate Nature of light as a particle?
Ans. You have seen that when excited electrons return to the ground state they release packets of energy, called photons. Photons are also known as light particles. Light is a strange creature. While we often refer to its wave properties, we also can mention its properties as a particle.
The energy of a photon relates to the color of light we see. High energy photons might emit in the ultraviolet region of the spectrum while low energy photons would wind up in the infrared. The relationship between the energy of a photon and the color we see is summed up in the following equation:
ΔE = hν
where E is the energy, h is Plank's constant (6.626 x 10-34 Joule seconds), and is the frequency of the radiation.
The electronic configuration of calcium ion ( Ca2 + ) is: (1) 1s 1 , 2s 2, 2p 6 , 3s 2 , 3p 6 , 4s 2 (2) 1s 1 , 2s 2 , sp 6 , 3s 2 , 3p 6 , 4s 1
i) Define a membrane in a process engineering context. Two of the main desired attributes of membranes are high permeability and high selectivity. Define permeability and select
What gas form by the hydrolysis of CaCN 2 ? Write down the equation of the reaction of CaCN 2 with water.
structure of 2-ethylbutanoic acid
chain shortening in aldoses
wat are d limitations of octet rule...??
(i) Use valence shell electron pair repulsion theory (VSEPR) to predict the shape of the molecule comprising oxygen, nitrogen and fluorine atoms, which has the formula ONF, and whe
Q. Explain about Monohalides? Monohalides of the type M 2 X 2 , (where X = F, C1 and Br) are formed only by 0. S and Se. Oxygen monofluoride decomposes above 25 K. These monoha
Why can it be said that the enzymatic action is highly specific? Ans) The enzymatic action is highly particular because only particular substrates of one enzyme bind to the acti
(a) How is aniline obtained from benzene? (b) Why are the secondary amines more basic than primary amines? Describe. (c) Write the complete chemical reactions for the convers
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