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Test of glucose - Biomolecules
(a) While heated in a waterless test tube, it melts, turns brown and finally black, provoding a characteristic smell of burnt sugar.
(b) While warmed along with a little conc. H2SO4, it leaves a charred residue of carbon.
(c) While it is boiled along with dilute NaOH solution, it first turns yellow and then brown.
PHOSPHORUS, ARSENIC AND ANTIMONY The bigger elements in the same group (15) as nitrogen are usually known as 'pnictogens' and their compounds with metals as 'pnictides'. Althoug
Which of the following has more unpaired d-electrons: (1) Zn + (2) Fe 2+ (3) N 3+ (4) Cu + An
Each element has a unique number of protons. This unique number is known as the element's atomic number . All atoms of a given element have the same atomic number. For example:
application of matlab in analytical chemistry
define metalloid
Suppose that we treated the polymer as an "ideal chain." If one ?xes the ?rst monomer of the polymer chain, how many con?gurations would be accessible? What is the con?gurationa
If the atomic weight of an element is 23 times that of the lightest element and it has 11 protons, then it contains : (1)11 protons, 23 neutrons, 11 electrons (2)11 protons,
Hedonic Rating In this test the assessor is asked to record the extent of liking for a product, usually by selecting a category on a "hedonic" or liking scale that runs from
How standard solutions are prepared in industries
what is amine
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