1 Answers
Talk Doctor Online in Bissoy App
What is acid rain?
Rain water having a pH of less than 5.6 is called acid rain.
1 Answers 1 views
What is a balanced chemical equation? Why should chemical equations be balanced?
A reaction which has an equal number of atoms of all the elements on both sides of the chemical equation is called a balanced chemical equation. The law of conservation...
1 Answers 1 views
Acid rain happens because
(b) burning of fossil fuels release oxides of carbon, nitrogen and sulphur in the atmosphere
1 Answers 1 views
Name the two gases given out by burning of fossil fuels, which dissolves in rain to form acid rain.
Sulphur dioxide (SO2) and oxides of nitrogen (NO2).
1 Answers 1 views
Paheli had heard that rain water is as good as distilled water. So, she collected some rain water in a clean glass tumbler
Rainwater contains dissolved salts. This makes it a conducting solution. There are no dissolved salts present in the distilled water. Hence, rainwater can allow electricity to pass through it while...
1 Answers 1 views
Which nucleic acid is responsible for carrying out protein synthesis in the cell ?
RNA (Ribonucleic acid)
1 Answers 1 views
Name the acid present in an ant sting and give its chemical formula.
The acid present in an ant sting is methanoic acid (formic acid). The chemical formula is HCOOH. To get relief, one should apply any available basic salt, e.g., baking soda...
1 Answers 1 views
Define a chemical reaction. State four observations which help us to determine that a chemical reaction
Process in which new substances with new properties are formed by the rearrangement of atoms is known as chemical reaction. (i) Evolution of gas : The chemical reaction between zinc and...
1 Answers 1 views
When rain is accompanied by a thunderstorm, the collected rain water will have a pH value.
(a) : Due to thunderstorm, temperature increases. As temperature increases, [H+] also increases, hence pH decreases.
1 Answers 1 views
Identify the wrong statement in the following. (a) Acid rain is mostly because of oxides of nitrogen and sulphur.
(d) : The thick layer of ozone called ozoneplanket which is effective in absorbing harmful ultraviolet rays given out by the sun acts as a protective shield. It does not...
1 Answers 1 views