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The frequency corresponding to transition n= 2 to n =1 in hydrogen atom is: (1) 15.66 x 10 10 Hz (2) 24.66 x 10 14 Hz (3) 30.5
No. of valence orbitals- No of Hybrid orbitals.Apply the formula for no. of hybrid orbitals.If it exceeds 4 then the answer is 0.
type of electrode?
what is perkin reaction?
Explain about the Defect breakdown It is because of cracks and pores at the surface. Moisture from atmosphere can collect on the surface and result in breakdown. Glazing is
Why do zinc hydroxide, aluminium hydroxide and lead (II) hydroxide dissolve in excess aqueous sodium hydroxide?
Hofmann Method - Determination of Molecular Mass The method is applied to those substances that are not stable at their boiling points, but that may be volatilised with no deco
What are different applications in which piezoelectricity is used Applications- Piezoelectric materials serve as a source of ultrasonic waves. At sea, they may be used to mea
The extraction of sodium metal
Question: (i) Explain the concept of Environmental Impact Assessment (EIA) and state its main objectives. (ii) List 3 activities (from the marine sector) which require an
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