21.What type of stoichiometric defect is shown by (i) ZnS, (ii) AgBr (iii) KCl
589 Views
22.Explain how vacancies are introduced in an ionic solid when a cation of higher valence is added as an impurity in it.
189 Views
23.Ionic solids, which have anionic vacancies due to metal excess defect, develop colour. Explain with the help of a suitale example.
207 Views
24.A group 14 element is to be converted into N-type semi-conductor by doping it with a suitable impurity. To which group should this impurity belong?
160 Views
Advertisement
25.What type of substances would make better permanent magnets, ferromagnetic or ferrimagnetic, justify your answer.
207 Views
26.how many the number of tetrahedral and octahedral voids are present in a cubic close packed structure of A spheres?
983 Views
27. What would be the number of tetrahedral and octahedral voids,In a face centred cubic unit cell (i.e., ccp structure) 4 atoms/ions are present?
304 Views
28.What type of point defect in a crystal of zinc sulphate?
362 Views
Advertisement
29.A cubic solid is made of two elements Y and Z. Atoms of Z are at the corners of the cube and Y at the body centre. What is the formula of the compound?
Short Answer Type
Switch
