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CBSE Class 11-science Answered

what is science
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Asked by akankhyapradhan123 | 22 Oct, 2021, 07:29: PM
answered-by-expert Expert Answer
An atom is the smallest particle of an element that can take part in a chemical reaction.
Answered by Ramandeep | 25 Oct, 2021, 09:39: PM

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CBSE 11-science - Chemistry
calculate the number of emitted per by a bulb 60 watt the wavelength of bulb 2000A
Asked by habibakhatoon112 | 15 Jul, 2022, 09:14: PM
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CBSE 11-science - Chemistry
what is science
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Asked by akankhyapradhan123 | 22 Oct, 2021, 07:29: PM
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CBSE 11-science - Chemistry
Why ionisation energy is always positive
Asked by kusumghosh71 | 21 Aug, 2021, 10:59: AM
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CBSE 11-science - Chemistry
chemistry atomicstructure
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Asked by muramshettyaashrith218 | 16 Sep, 2020, 09:58: PM
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CBSE 11-science - Chemistry
The wavelength of a spectral line for an electronic transition is inversely proportional to : (1) number of electrons undergoing transition (2) the nuclear charge of the atom (3) the velocity of an electron undergoing transition (4) the difference in the energy involved in the transition
Asked by nandanappillai | 21 May, 2020, 01:08: PM
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CBSE 11-science - Chemistry
a photon of 3000 Angstrom is absorbed by a gas and then re-elected as two photons. One photon is red 7600  Angstrom  .  What wavelength of other photon?  Here I am knowing solution but I am not able to understand that why we are using formula ( h*c/lambda of total =  h*c/lambda of 1 +h*c / lambda of 2 ) Please solve it 
Asked by rajarage18 | 23 Jan, 2020, 08:00: PM
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CBSE 11-science - Chemistry
Formula of energy
Asked by kuldeepsingh33087 | 27 Jul, 2019, 11:35: AM
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CBSE 11-science - Chemistry
Solved numerical s on Plank quantum theory?  
Asked by vijaykumartecno348 | 06 Jul, 2019, 09:26: PM
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CBSE 11-science - Chemistry
Light of wavelength 1281.8nm is emitted when an electron of hydrogen atom drops from 5th to 3rd energy level calculate the wavelength of the photon emitted when electron falls from 3rd to ground level. 
Asked by Taniyarana150 | 23 May, 2019, 12:01: AM
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CBSE 11-science - Chemistry
Hi 
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Asked by jain.pradeep | 02 May, 2019, 11:52: PM
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