Ankur Q- Give two examples of Chronic disease Answer- Two examples of Chronic diseases are: Cancer and Diabetes. Explanation- Chronic diseases are those diseases that last for a long time period it can be 3 months or longer. These types of diseases get worse with time. Some examples of chronic diseases are- stroke, diabetes, Elephantiasis, heart … Read more
Q- A compound is formed by two elements M and N. The element N forms ccp and atoms of M occupy 1/3rd of tetrahedral voids. What is the formula of the compound? Answer- The ccp lattice is formed by atoms of N element. So, the number of tetrahedral voids is equal to twice the number … Read more
Q- Which of the following lattices has the highest packing efficiency (i) simple cubic (ii) Body Centred cubic and (iii) Hexagonal close-packed lattice? Answer- The Hexagonal closed packed lattices have the highest packing efficiency which is 74 percent. Whereas the Body Centred cubic lattice has 68 percent and the simple cubic lattice has 52.4 percent … Read more
Q- What is the two dimensional coordination number of a molecule in square close packed layer? Answer- Four is the two-dimensional coordination number of a molecule in a square close-packed layer. Because in a square close-packed layer, the molecule is in 4 square close-packed layers. Class 12th Important Questions Students Also Asks