Suppose two of your classmates happen to be twins. Will they look same in structure and shape ?

How can you say a bottle is PET Bottlle? Collect different kinds of water bottles of your classmates and look at them carefully. What number is marked in the center of the triangle?

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 ?

Two tubes of same length and diameters 4mm and 8mm are joined together to form a U-shaped tube open at both the ends. If the U-tube contains water, then the difference between the levels of water in the two lims of the tube is (Surface tension of water at the temperature of experiment is 7.3 xx 10^(-2) Nm^(-1) , angle of contact = 0^(@) , density of water = 1.0 xx 10^(3) kg m^(-3) and acceleration due to gravity = 10 ms^(-2) )

Name the two shapes which have the same number of edges, vertices and faces.

Two girls are playing to identical stringed instruments. The strings of the both instruments are adjusted to give notes same pitch. Will the quality of two notes be same ? Justify your answer.

Suppose your taste buds were affected what would happen to your interest in having food ?

If two events have same chances to happen, then they are called…………

Given that n A.M.s are inserted between two sets of numbers a , 2b and 2a, b where a,b in R . Suppose further that the mth mean between these sets of numbers is same. Then the ratio a : b =

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