When mixed with equal volumes, which of the following solutions would function as an effective pH buffer? a. 0.250 MNaCl and 0.250 MHCI
b. 0.250 MNaClO and 0.250 MHCIO
c. 0.250 MNaOH and 0.250 MHCI
d. 0.250 MNH4Cl and 0.250 MNH3
e. 0.250 MHN03 and 0.250 MNaNO3

answer: you could do some invislibe ink.

explanation: i will tell you how to if u answer my question.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.