Chemistry Test 4

Instructions

For the following questions answer them individually

Q 1

What is meaning of one unit carbon permit?

Q 2

Due to the presence of which gas, does Brass get discoloured in air?

Q 3

Which of the following is the most commonly used bleaching agent?

Q 4

Which of the following elements is present in Chlorophyll?

Q 5

The stings of some species of ants gives a burning sensation to the skin and itchiness. This is because of of the presence of … acid in their jaws.