Search SchoolNGR

Chemistry Past Questions and Answers

Waec Chemistry Questions

Question 361:

The following statements about graphite are correct except that it

SchoolNGR Classroom

A Is used as a lubricant
B Has a network structure
C Contains mobile free electrons
D Is good conductor
E Is an allotrope of carbon

View Answer & Explanation

Question 362:

Which of the following is hydrocarbons is unsaturated?

SchoolNGR Classroom

A Ethane
B Benzene
C Propane
D 2 - methylbutane
E 2,2,4-trimethylpentane

View Answer & Explanation

Question 363:

The following can be obtained directly from the destructive distillation of coal except

SchoolNGR Classroom

A Ammoniacal liquor
B Coke
C Producer gas
D Coal gas
E Coal tar

View Answer & Explanation

Question 364:

Fructose and glucose are classified as carbohydrates because they

SchoolNGR Classroom

A Are crystalline white solids
B Are energy -giving substances
C Are naturally occurring organic compounds
D Contain carbon oxygen and hydrogen
E Conform to the general formula C_x(H₂O)_y

View Answer & Explanation

Question 365:

The gas produced when a mixture of sodium propanoate and soda lime is heated is

SchoolNGR Classroom

A Methane
B Pentane
C Ethane
D Butene
E Ethyne

View Answer & Explanation

Stay Updated

Follow us on:

Subjects