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In neutral atom, which particles are equivalent:
(1) P+ e+
(2 ) e- e+
(3) e-, P+
(4) P+ n0
Ans: e-, P+
In naturally occuring neon, the fracional abundance of various isotopes is as follows: 20Ne =0.9051; 21Ne = 0.0027; 22Ne = 0.0922. What is the atomic mass of neon?
What gas form by the hydrolysis of CaCN 2 ? Write down the equation of the reaction of CaCN 2 with water.
As compared to covalent compounds, electrovalent compounds generally have: (1) Low melting points and low boiling points (2) Low melting points and high boiling points (3
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Q. Detect the presence of synthetic food colours in the given samples? Objectives After conducting this activity, you will be able to: • describe the kind of natural
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