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What is difference among silica used in TLC and HPLC column?
Ans) TLC is known as thin layer chromatography. The simple methods works on the principle of adsorption, where as HPLC is a sophisticated methods works on partition principle.
maximum no of unpaired electrons a)mn2+ b)ti3+ c)v3+ d)fe2+
Q. Why we use Boron? Boron is used to increase the hardness of steels. Crystalline boron is used in transistors. Boron is a good neutron absorber and is used as shields and con
#question.types of hydrocarbon found on oil contaminited site.
Antidepressants: These drugs are specified to patients along with shattered confidence. These provide a feeling of well being and confidence in the person of depressed mood. H
Classify each reaction and give the name of all the chemical formula involved for each number. 1. Na2CO3(s) + SiO2(s) ? Na2SiO3(l) + CO2(g) 2. 2 Mg(NO3)2(s) ? 2 Mg(NO2)2(s) + O2
explanation for quinonoid theory
What will be the mole fraction of 98% pure H2SO4 in 1 liter solution which has density 1.85gm/ml at ntp?
Who modified Bohr's theory by introducing elliptical orbits for electron path: (1) Hund (2) Thomson (3) Rutherford (4) Sommerfield Ans: Sommerfield
write about deutorium
feature of s, p, d,f block in periodic table
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