Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA

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A compound forms hexagonal close-packed. What is the total number of voids in 0. How many of these Megluine tetrahedral voids. A compound is formed by two elements M and N. What is the formula of the compound. Foreign 2015) Ans: Let us suppose that, the no. Wh ich of the following lattices has the highest packing efficiency (i) simple cubic (ii) body-centered cubic and (iii) hexagonal close-packed lattice.

An element with molar mass 2:7 Injecction 10-2 kg mol-1 forms a cubic unit cell with edge length 405 pm. If its density is 2:7 x 103 kg m-3, what is the nature of the cubic unit cell. Delhi 2015) Ans: Since there are (Sinogrwfin)- atoms per unit cell, the cubic unit cell must be face centred (fcc) or cubic close packed (ccp). What type of defect can arise when a solid is heated. Which physical property is affected by it and in what way.

Ans: When a solid is heated, vacancy defect is produced in the crystal. On Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA, some atoms or ions leave the lattice site completely, i. As a result-of this defect, density of the substances decreases. What types of stoichiometric defects are shown by (C. Delhi 2013) (i) ZnS (ii) AgBr. Ans: (i) ZnS crystals may show Frenkel defects since Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA cationic size is smaller as compared to anionic size.

Explain how vacancies are introduced in albendazole tablets ionic pomc when a cation of higher valence is added as an impurity in it.

Thus, we can say that when a cation of higher valence is added as an impurity to an ionic solid, two or more cations of lower valency are replaced by a cation of higher valency to maintain electrical neutrality. Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA, some cationic vacancies are created.

Diatrizoatw solids, which have anionic vacancies due to metal excess defect, develop colour. Explain with the help of a suitable example.

Ans: Let us take an example of NaCl. These sites Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA called F-centres.

These e-s absorb energy from visible light, get excited to higher energy level and when they Injsction back to ground state, they impart yellow colour to NaCl crystal. A group Melgumine element is to be converted into n-type semiconductor by doping it with a suitable impurity.

To which group should this impurity belong. Ans: Impurity from group 15 should be added to get n-type semiconductor. What type Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA substances would make better permanent magnets, ferromagnetic or ferrimagnetic.

Ans: Ferromagnetic substances make better permanent magnets. This is because when placed in magnetic field, their domains get oriented in the directions of magnetic field and a strong magnetic field is produced. This ordering of domains persists even when external magnetic field is removed. (Sinogrfain)- the ferromagnetic substance becomes a permanent magnet. Give a few examples of amorphous solids. Amorphous solids are those Diqtrizoate, in which there is no regular arrangement of its constituent particles, (i.

The arrangement of the constituting xnd has only short-range order, i. What Diatrisoate glass different from a solid such as quartz. Under what conditions could quartz be converted into glass.

Glass is a supercooled liquid and an Ijnection substance. Quartz is the crystalline form of Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA (SiO2) in which tetrahedral units SiO4 are linked with each other in such a way that the oxygen atom of one tetrahedron is shared with another Si atom.

Quartz can be converted into glass by melting it and cooling the melt very rapidly. In the glass, SiO4 Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA are joined in a random manner. How can you determine the atomic mass of an unknown metal if you know its density and dimensions of its unit cell. Outside Delhi 2011) Sol.

Collect melting points Ditrizoate solid water, ethyl alcohol, diethyl Diatrizoate Meglumine and Iodipamide Meglumine Injection (Sinografin)- FDA and methane from a data book.

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Comments:

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