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Q. Show the Multiple covalent bonds between electron pairs?
Ans.
Two atoms may share one electron pair, two electron pairs or three electron pairs. The bonds formed in this way are called a single bond, a double bond or a triple bond. The following diagram shows the electron dot structures for double and triple bonds:
A shared electron pair is also known as a bond pair. Other non-bonding electron pairs in the outermost shells are called lone pairs. The bond pairs and lone pairs can be shown as follows:
The hydride ions H- are isoelectronic with: (1) Li (2) He + (3) He (4) Be Ans: He
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Basic dyes: These types of dyes are the hydrochlorides or zinc chloride salts of colour bases comprising basic group sets. These dyes act along with anionic sites available on
Q. What do you mean by Acid Value and Free Fatty Acids? Acid value is a measure of hydrolytic rancidity present in the sample of oil/fat. It reflects the state of freshness o
The correct sequence of increasing covalent character is represented by: (1) LiCl 2 (2) BaCl 2 (3) NaCl 2
laws of chemical combination
what are atoms made of ?
explain the mechanism
Middle oil of coal-tar distillation comprise naphthalene and phenolic elements. Phenolic compounds are isolated in subsequent steps. Step a: Middle oil is washed along with H 2
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