Each carbon oxygen bond in co2 is polar but co2 molecule is nonpolar give reason​

CO 2 is non polar molecule although it contains polar C-O bonds. This is because of the symmetrical linear structure of CO2 (O=C=O), the strength of polarity of each C-O bond being same and in opposite direction the polar bonds cancel the effect of each other, thus give rise to non polar molecule

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under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

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