Which of the following molecule(s) is (are) polar? co2, ch4, cbr4, or chbr3

CO2 is not polar as in this case the same types of molecules are pulling in the same as well as opposite direction. CH4 is also not polar as there is no imbalance in the charge of the molecules. CBr4 is also not polar because in this case also no imbalance in the molecular charges can be seen. CHBr3 is a bit polar in nature because it has different kind of charges at its opposite ends. S among the all 4 options CHBr3 is polar.

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Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f.