Please answer these 2 questions fast!!!! (i) What is the importance of pH in our daily life?? (ii) Which element in the following reaction is reducing agent? 3MnO2+4Al—>3Mn+2Al2O3

Please answer these 2 questions fast!!!! (i) What is the importance

1.	Please answer these 2 questions fast!!!! (i) What is the importance of pH in our daily life?? (ii) Which element in the following reaction is reducing agent? 3MnO2+4Al—>3Mn+2Al2O3
Answer» E!(i) IT HELPS US TO KNOW THAT THE ELEMENT IS ACIDIC , BASIC OR NEUTRAL.(ii) THE REDUCING AGENT IS Mn IN THIS REACTION BECAUSE IT LOOSES OXYGEN. ^_^ =_= B-) :-[ PLEASE MARK MY ANSWER AS A BRAINLIEST ANSWER.THANK YOU.