Question

2.3
What is dipole moment what is its unit.
द्विध्रुव आघूर्ण क्या होती हैं? इसकी इकाई क्या है।
Q.4
Write two methods of preparation of silicon.
सिलिकॉन्स बनाने की दो विधियाँ लिखिये।
Q.5, Write note on L-S Coupling.
L-S युग्मन पर टिप्पणी लिखिये।
Q.6
Write note on orgarolithium compounds.
कार्बलिथियम यौगिकों पर टिप्पणी लिखिये।​

Answer 1

Answer:

1:Electric Dipole moment is the measure of the polarity of the system. It is the separation of positive charge and a negative charge by a distance. The SI unit of electric dipole moment is Coulomb-meter. The simplest example is a pair of electric charges of two opposite signs and equal magnitude separated by distance.

2:Preparation. Silicones are prepared by the hydrolysis of alkyl or aryl substituted silicon halides. Alkyl or aryl substituted silicon halides are prepared by passing gaseous alkyl or aryl halide over an alloy of copper and silicon at 300°C. The hydrolysis of dimethyldichlorosilane gives dimethyl silanol.

3:The energy levels which are characterised by certain values of L and S are called terms and the coupling of angular momenta of individual electrons to a resulting orbital angular momentum and spin is referred to as LS-coupling or Russell-Saunders coupling.

4:Organolithium reagents are organometallic compounds that contain carbon – lithium bonds. They are important reagents in organic synthesis, and are frequently used to transfer the organic group or the lithium atom to the substrates in synthetic steps, through nucleophilic addition or simple deprotonation.

Explanation:

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Answer 2

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Electric Dipole moment is the measure of the polarity of the system. It is the separation of positive charge and a negative charge by a distance. The SI unit of electric dipole moment is Coulomb-meter. The simplest example is a pair of electric charges of two opposite signs and equal magnitude separated by distance.

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Preparation. Silicones are prepared by the hydrolysis of alkyl or aryl substituted silicon halides. Alkyl or aryl substituted silicon halides are prepared by passing gaseous alkyl or aryl halide over an alloy of copper and silicon at 300°C. The hydrolysis of dimethyldichlorosilane gives dimethyl silanol.

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The energy levels which are characterised by certain values of L and S are called terms and the coupling of angular momenta of individual electrons to a resulting orbital angular momentum and spin is referred to as LS-coupling or Russell-Saunders coupling

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Organolithium reagents are organometallic compounds that contain carbon – lithium bonds. They are important reagents in organic synthesis, and are frequently used to transfer the organic group or the lithium atom to the substrates in synthetic steps, through nucleophilic addition or simple deprotonation.