Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA

Вам человеческое Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA меня

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 x 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 four 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 heating, 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 the cationic size is smaller Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA compared to anionic size. Explain how vacancies are introduced in an ionic solid when a cation of higher valence is added as Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA 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 Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA cations of lower valency are replaced by a cation of higher valency to maintain electrical neutrality. Hence, some cationic vacancies are created.

Ionic 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 are called F-centres. These e-s Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA energy from visible light, get excited to higher energy level and when they fall Voclosporin Capsules (Lupkynis)- Multum to ground state, they impart yellow colour to NaCl crystal.

A group 14 element is to Corlanor (Ivabradine Tablets)- FDA 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 of substances would make better Thyroid Tablets (Nature-Throid)- Multum 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. Hence, the ferromagnetic substance becomes a permanent magnet. Give a few examples of amorphous solids. Amorphous solids are those substances, in which there is no regular arrangement of its constituent particles, (i. The arrangement of the constituting particles has only short-range order, i.

What sling bladder glass different from a solid such as quartz. Under what conditions could quartz be converted into glass. Glass is a supercooled liquid and an amorphous substance. Quartz is the crystalline form of silica (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 tetrahedra 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 of solid water, ethyl alcohol, diethyl ether and methane from a data book. What Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA you say about the intermolecular forces between these molecules.

Higher the melting point, greater are the forces holding the constituent particles together and thus greater is the stability of a Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA. Melting points of given substances are following. The intermoleoilar forces present in case of water and ethyl alcohol are mainly due to the hydrogen bonding which is responsible for their high melting points.

Hydrogen bonding is stronger in case of water than ethyl alcohol and hence water has higher melting point then ethyl alcohol. Dipole-dipole interactions are present in case of Zubsolv (Buprenorphine and Naloxone Sublingual Tablets)- FDA. How will you distinguish between the following pairs of arterial : (a) Hexagonal close packing and cubic close packing (b) Crystal lattice and unit cell (c) Tetrahedral void and octahedral void.

On the other hand, in cubic close packing (ccp), the spheres of the fourth layer are present above the spheres of the first layer (ABCABC…. It is therefore, called space lattice or crystal lattice.

Further...

Comments:

15.12.2019 in 18:44 Fenrihn:
It — is healthy!