The oxidation of oxygen in peroxides is?
-1
Peroxides include hydrogen peroxide, H2O2. This is an electrically neutral compound and so the sum of the oxidation states of the hydrogen and oxygen must be zero.
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Which of the following has strongest basic character?
Na2O3
Basic character of oxides decrease within a period from left to right. All the given elements are in the period 2 and Na is the left most element of period 2.
What shunt resistance must be connected across a galvanometer of 50.0 ohm resistance which gives full scale deflection with 2.0MA current so as to convert it into an ammeter of range 10.0A?
0.01Ω
In fish, gills surface is ventilated by constant flow of?
Water
Marine species obtain oxygen dissolve in water so gills are constantly ventilated by water to oxygenate the blood.
Some reaction start very slow, but then gain speed and eventually become very fast. These reactions exhibit which phenomena?
Auto catalysis
In these reaction product formed acts as a catalyst. That is why they start very slow, but then gain speed (as the product catalyst is available) and eventually become very fast.
Value of cos (tan-1 15/8 – sin-1 7/25) =?
297/425
Find the work done in moving a charged particle of 3 micro columb from infinity to a distance of 0.04m to another charged particle of 5 micro columb?
3.4 J
Trypsinogin is converted into trypsin by the activity of:
Enteropeptidase
Trypsinogen is the precursor form of the pancreatic enzyme trypsin. It is found in pancreatic juice, along with amylase, lipase and chymotrypsinogen. It is activated by enteropeptidase, which is found in the intestinal mucosa, to form trypsin. Once activated, the trypsin can activate more trypsinogen into trypsin. Trypsin cleaves the peptide bond on the carboxyl side of basic amino acids such as arginine and lysine.
The oxidation of oxygen in peroxides is?
-1
Peroxides include hydrogen peroxide, H2O2. This is an electrically neutral compound and so the sum of the oxidation states of the hydrogen and oxygen must be zero.
