Which statement would indicate the presence of an acid? it tastes bitter.. it does not react with active metals. it reacts with active metals to form a gas. it does not change the color of litmus paper

Option (C) is the correct answer.

Explanation:

Acids are the species which donate a proton or hydrogen ion.

Properties of acids are as follows.

Acids are sour in taste.

They turn blue litmus red.

They react with metals to form a gas.

pH of acids is less than 7.

Acids have a sticky texture.

2b2t

explanation:

2b2t

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.