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The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
What is electromeric effect
write summarized report on s block elements characteristics and properties
hitorff method
what is migratory aptitude in rearrangement reactions
Calculate the activity of nuclides: Problem: 100 mg piece of a gold ornament containing 10% copper as impurity was irradiated with thermal neutrons at 2.1×10 11 n/cm 2
Calculate the mass of sodium chloride: Problem: Let us calculate the mass of sodium chloride in a solution containing 24 Na (half-life, 15 h) whose activity is 5.7 mCi
explanation of the conductometric curve plotted for AgNO3 and KCL
Nuclei contain uncharged neutrons and positively charged protons; these two particles with about the same mass are known as nucleons. The number of protons is the atomic number of
Q. Explain about Roasting process? Roasting is the method of heating ores in the presence of excess air and involves oxidation. It is mainly applied to sulphide ores, which are
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