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Q. What is Diborane?
The chemistry of diborane has aroused considerable interest because of its usefulness in many synthetic reactions and also because the elucidation of its structure helped to clarify the basic concepts about the structure of electron deficient compounds.
Which one of the following is not isoelectronic with O 2- : (1) N- 3 (2) F - (3) Tl + (4) Na + Ans: Tl +
Q. What do you understand by dissolved oxygen in water? How does it create trouble in boiler? Give chemical methods with suitable reactions to remove it from the water. Ans.
Discuss about the different types of stones used for the construction and how to determine the good quality stone?
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explain why Ni(co)4 is known while Ca(co)4 is not known
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