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Be's 4th electron will have four quantum numbers:
n l m s
(1) 1 0 0 +1/2
(2) 1 1 +1 +1/2
(3) 2 0 0 - 1/2
(4) 2 1 0 +1/2
Ans: 2 0 0 - 1/2
how many type of atom?
Threshing The process of threshing separates the kernels from the stalks or panicles on which they grow. Threshing may take place in the field, or at the homestead or village;
Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
Uncertainty principle gave the concept of: (1) Probability (2) An orbital (3)Physical meaning of Ψ the Ψ (4)All the above Ans: Probability
what are moles?
Q. Explain about Froth flotation process? Froth flotation process is the most important method for beneficiation of ores. This process has made possible the beneficiation of lo
Advantages of ICP-AES method: The wide applicability of ICP-AES in the quantitative analysis of various materials can be attributed to the following advantages. Rapid a
#questionQ1. 0.28gm of CaCO3 was dissolved in HCl and the solution was made to one litre with distilled water. 100 ml of the above solution required 28 ml of EDTA solution on titra
What are Cell diagrams? Consider the galvanic cell depicted in Figure. This cell has a hydrogen electrode at the left and a silver-silver chloride electrode at the right. The h
Measure the combustion energies for the burning of 1 mol of propane and butane gas in air under these conditions. Calculate the efficiency of the combustion process as a functi
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