Do all furnaces have same structure?

Do all forests have same type of vegetation?

Do all plants have stems?

Do all flowers have same parts? Give examples of some flowers and explain your answer.

Do all flowers have same parts? Classify the flowers according to the parts of flower present in them and give examples.

In onion peel cells you have seen that nearly all cells are similar in structure and shape. If you repeat this experiment with peels of onions of different size, what do you think your observations would be ? Do bigger onion have big cells ?

C, Si and Ge have same lattice structure. Why is C insulator while Si and Ge intrinsic semiconductors?

The necessary condition for a molecule to exhibit optical isomerism is dissymmetry or chiral. Thus all organic compounds which contain one as symetric carbon atom are chiral and exist in two stereoisomers. Although the two forms have the same structure, they have different arrangements of groups about the as symmetric carbon. In fact, they represent as symetric molecules. They do not have a plane of symmetry. They are related to each other as an object to its mirror image and are non superimposable. The two structures actually stand for dextro or (+) and leavo or (-) isomers. Since they are related each other as mirror images, they are commonly called enantiomers. Consider the following structures A,B,C,D Which of the following statements is not correct

(A) Diamond and graphite do not have same crystal structure. (R) Diamond is crystalline while graphite is amorphous

Do all farmers use the same pesticides for the same crop.

(A) Sulphonamide drugs have same mechanism of action on targets. (R) The drugs have same structural feature have same mechanism of action.