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For which of the following sets of four quantum numbers, an electron will have the highest energy:
n l m s
(a) 3 2 1 +1/2
(b) 4 2 1 +1/2
(c) 4 1 0 -1/2
(d) 5 0 0 -1/2
Ans: 4 2 1 +1/2
who discovered fractional distillation
Equivalent weight of Ca in Ca3(PO4)2 is
What volumne of 10.83 M HNO3 is required to prepare 683 mL of a 1.9 M HNO3 solution? Answer in units of mL
Which one of the following configuration represents a noble gas: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , (2)1s 2, 2s 2, 2p 6 , 3s 1 (3) 1s 2 , 2s 2 , 2p 6 ,
Q. Conduct a descriptive analysis of bread? To sensory evaluate the slice of white bread on the basis of appearance, taste, texture and flavour. • judge the product quality
In lab, you're having fun along with buffers based onto a 0.1 M solution of sodium phosphate at pH7.0. Into this system, there are three of pK A s as: 12.7, 7.21 and 2.12.
Basic dyes: These types of dyes are the hydrochlorides or zinc chloride salts of colour bases comprising basic group sets. These dyes act along with anionic sites available on
H+
Chemical formula for calcium pyrophosphate is ca 2, P 2 O 1. The formula for ferric pyrophosphate will be: (1) Fe 3 (P 2 O 1 ) 3
Q. What is Calcinations process? This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcin
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