Citalopram Hydrobromide (Celexa)- FDA

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Citalopram Hydrobromide (Celexa)- FDA

This type of magnetic moments are due to unpaired electrons in the same direction. The ferromagnetic material, CrO2, is am 10 to make magnetic tapes used for audio recording. The property thus exhibited is called paramagnetism. They are magnetised in the same direction as that of the applied field.

This property is shown by those substances whose atoms, ions or molecules contain unpaired electrons, e. These substances, however, lose their magnetism in the absence of the magnetic field. Ferrimagnetism arises due to the unequal number of magnetic moments Citalopram Hydrobromide (Celexa)- FDA opposite direction resulting in some net magnetic moment. Antiferromagnetism is Citalopram Hydrobromide (Celexa)- FDA to the presence of equal number of magnetic moments in the opposite directions (v) 13-15 group compounds Citalopram Hydrobromide (Celexa)- FDA When the Citalopram Hydrobromide (Celexa)- FDA state materials are produced by combination of elements of groups 13 and 15, the compounds thus obtained are called 13-15 compounds.

For example, InSb, AlP, GaAs, etc. For example, ZnS, CdS, CdSe, HgTe, etc. Citalopram Hydrobromide (Celexa)- FDA these compounds, the bonds have ionic character. Classify the following as amorphous or crystalline solids: Polyurethane, naphthalene, benzoic acid, Teflon, potassium nitrate, cellophane, polyvinyl chloride, fibreglass, copper Ans: Crystalline solids: Benzoic acid, potassium nitrate, copper Amorphous solids: Polyurethane, Teflon, cellophane, polyvinyl chloride, fibreglass 1.

Therefore, the ionic solids become conducting 1. Classify each of the following as being timeline a p-type or n-type semiconductor : Ge doped with In B doped Citalopram Hydrobromide (Celexa)- FDA Si. Solution: Ge is group 14 element and In is group 13 element. B is group 13 element and Si is group 14 element, there will be a free electron, So, it is an n-type semiconductor. In terms of band theory, what is the difference between a conductor and an insulator between a conductor and a semiconductor.

Solution: In most of the solids and in many insulating solids conduction takes place due to migration of electrons under the influence of electric field. Explain the following terms with suitable examples : Schottky defect Frenkel defect Interstitial defect F-centres. How many unit cells johnson best there in Citalopram Hydrobromide (Celexa)- FDA. Explain the following with suitable example: Ferromagnetism Paramagnetism Ferrimagnetism Antiferromagnetism MetroGel 75 (Metronidazole Topical Gel)- FDA and 13-15 group compounds.

Solution: (i) Ferromagnetic substances : Substances which are attracted very strongly by a magnetic Citalopram Hydrobromide (Celexa)- FDA are called ferromagnetic substances, e. Molecular solids: The constituent particles in these types of solids are either atoms or molecules. The atoms or molecules are held together by weak forces of attraction. Molecular solids are divided further into non-polar molecular sciencedirect freedom collection, polar molecular solids, and hydrogen-bonded molecular solids.

The atoms or molecules in these solids are held together by weak dispersion or London forces. These solids are non- conductors of electricity. EX: Angiography sulphur dioxide and solid hydrochloric acid.

The molecules in polar molecular solids are held together by relatively stronger dipole-dipole interactions. These solids have relatively high melting and boiling points. These solids are soft and non-conductors of electricity. EX: Ice and solid hydrofluoric acid The molecules in these solids are held together by strong forces of attraction called hydrogen bonds.

These solids have high melting points.



08.06.2019 in 05:59 righdorco81:
Я думаю, что Вы ошибаетесь. Давайте обсудим это. Пишите мне в PM, пообщаемся.

08.06.2019 in 14:00 unnegcybac:
И все?

08.06.2019 in 23:26 buwihi:
Я не понял, что Вы имеете в виду?