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write the structures of the major product (saytzeff elimination) when the following alcohols are dehydrated with hot,concentrated sulphuric acid. 1. 3-methyl-2-butanol 2. 2-pentano
Which sample is better to use, bigger sample or smaller sample?
If hydrogen atom is in an energy level represented by n=4,how many spectral lines are possible in its emission spectrum? Solution) There is a formula for this i.e [ (n 2 - n 1
The total number of valence electrons in 4.2 gm N-3 of ion is ( NA is the Avogadro''s number): (1) 1.6NA
Matter is anything that has mass and takes up space. The term matter refers to all the materials, or "stuff," making up the universe. Everything you see around you is matter. The c
A township of 25,000 inhabitants is to discharge treated domestic sewage to the neighboring stream which has a least flow of 0.25 m3/s and a 5-day BOD of 3 mg/L. Water consumption
A red flame is produced when LiCl is heated. How can I determine which transition between the energy levels produces this colour?
Which one of the following groupings represents a collection of isoelectronic species: (1) NA +, Ca 2+ , Mg 2+ (2) N3, F - , Na + (3) be, Al 3+ , Cl -
What is basically Gibb''s free energy change? Ans) The energy associated with a chemical reaction that can be used to do work. The free energy of a system is the sum of its entha
Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than
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