Question : How many oxygen atoms are there in a molecule of acetic acid?

Option 1: 1

Option 2: 2

Option 3: 4

Option 4: 3

Question : How many oxygen atoms are there in an acetone molecule?

Option 1: 3

Option 2: 1

Option 3: 2

Option 4: 4

Question : How many hydrogen atoms are there in a molecule of methane?

Option 1: 2

Option 2: 6

Option 3: 4

Option 4: 3

Question : How many calories are there in a joule?

Option 1: 0.24

Option 2: 0.48

Option 3: 0.72

Option 4: 0.96

Question : How many isotopes of hydrogen elements are there?

Option 1: 2

Option 2: 3

Option 3: 4

Option 4: None of the options is correct