53. A road tanker carrying an acid was involved in an
accident and its contents spilled on the road. At the side
of the road iron drain cover began melting and fizzing as
the acid ran over them. A specialist was called to see if
the acid actually leaked into the nearby river.
(a) Explain why specialist could carry out sample test to
see of the river water contains some acid or not
(b) Suggest a better report name for the word 'melting
(c) Explain why the drain covers began fizzing as the acid
ran over them.
Answers
Answer:
a)The specialist could use a blue litmus paper to test a sample of water from the river. If it turns red, then the water has acid content.
b)Melting is incorrectly used in place of corroding. Corroding is the correct term.
c) The drain covers fizz because when acid reacts with iron hydrogen gas is liberated. It is this hydrogen gas that bubbles and forms the fizz.
Hope it helps you ....
Answer:
a)The specialist could use a blue litmus paper to test a sample of water from the river. If it turns red, then the water has acid content. if it still stays in Blue colour it means it is either neutral or a base!
b)Corroding is the correct term.
c) The drain covers fizz because when acid reacts with iron hydrogen gas is liberated. It is this hydrogen gas that bubbles and forms the fizz.
I hope this helped you!