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Q. What is structural formula and how to write it? Ans. To represent an organic molecule, a structural formula is often used. As a structural formula shows how the atoms i
The number of quantum numbers required to describe an electron in an atom completely is: (1) 1 (2) 2 (3) 3 (4) 4 Ans: 4
d orbital
Q. Estimation of synthetic food colours in foods? Food colours in various products need to be isolated, identified and then quantitatively measured for their limits. Estimatio
why is carbon valency four
A monosaccharide A has a molecular weight of 150 Da. The two stereoisomers B and C that are both optically inactive form when A reacts with NaBH4. Show all dissimilar stereoiso
What was the calculated ?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure? The thermodynamic data is: •?H°f for NH3 (aq) = -
Q. How do you determine the oxidizing or reducing agent? Ans. A substance that oxidizes another substance is called an oxidizing agent. One that reduces another substance
which of the following is not a characteristic of plunck''s quantum theory of radiation? A) Radiation are associated with energy B) A body can emit less or more than a quantum of e
Pauli's exclusion principle states that : (1) Nucleus of an atom contains no negative charge (2) Electrons move in circular orbits around the nucleus (3) Electrons oc
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