42
45
126
180
145
Correct answer is D
Empirical formula = CH2O
= 12 + (2 x 1) + 16
= 30
Molecular formula = (CH2O)n, where n is a whole number.
= 30n
∴ From the options, only 180 is a multiple of 30. Hence, that is the only likely molecular mass with respect to CH_2O.
What is the chemical symbol for Xenon? ...
In the oil drop experiment, Millikan determined the? ...
In a reaction: SnO_{2} + 2C → Sn + 2CO the mass of coke containing 80% carbon required to r...
To which group and period respectively does an element with 15 electrons belong? ...
Chemicals that are produced in small quantities and with very degree of purity are ...
Which of the following species does not contain a co-ordinate bond? ...
An example of a polysaccharide is? ...