How many of the following molecules are polar? brcl3 cs2 sif4 so3

BrCl3

Explanation:

BrCl3: This compound has a T- shaped molecular geometry. And the difference in electronegativity is  0.2 to be precise makes is  polar covalent compound.

CS2: Carbon sulphide is clearly a non polar compound because of the similar electronegativities of both carbon and sulphur.

SiF4: This molecule has Tetrahedral geometry. So, even though the difference in the electronegativity of Sulphur and Florine is high, the tetrahedral geometry makes it a non polar compound.

SO3:  This molecule has trigonal planer geomtry. Hence, again in this molecule the polarity is being equal and opposite is cancelled out.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.