Processing math: 66%
Home / Aptitude Tests / Chemistry / Which of the followi...
Which of the following is the relative molecular mass of a c...

Which of the following is the relative molecular mass of a compound which has empirical formula CH2O? (H = 1; C = 12; O = 16)

A.

42

B.

45

C.

126

D.

180

E.

145

View answer & explanation

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.

See all Chemistry questions & answers
See more WAEC questions & answers
Similar Questions

The choice of method for extracting a metal from its ores depends on the ...

A phenomenon where an element exist in different forms in the same physical state is known as ...

The oxidation state of carbon in HCOOH is ...

Which of the following CANNOT be obtained by fractional distillation of petroleum? ...

In a fixed volume of a gas, an increase in temperature results in an increase in pressure due to an ...

How many mole of AgNO 3 are there in 500cm3 of 0.01MAgNO3 solution?...

Which of the following metals is passive to concentrated trioxonitrate (V) acid? ...

In the Haber process for the manufacture of ammonia, the catalyst commonly used is finely divided ? ...

An anhydride is an oxide of non-mental? ...

Which metal bromide is widely used in photography? ...

Aptitude Tests

Data Interpretation Questions and Answers

Quantitative Reasoning Questions and Answers

Verbal Reasoning Questions and Answers

Personality Test

Situational Judgement Questions and Answers

Numerical Reasoning Questions and Answers

Abstract Reasoning Questions and Answers

Puzzles Questions and Answers

Nigeria General Knowledge Questions and Answers

Microsoft Office Questions and Answers

Logical Reasoning Questions and Answers

Typing Speed and Accuracy Test

Spatial Reasoning Questions and Answers

See all →


View latest jobs in Nigeria today