WAEC Chemistry Past Questions & Answers - Page 136

676.

The minimum amount of energy required for effective collisions between reacting particles is known as

A.

activation energy

B.

bond energy

C.

kinetic energy

D.

potential energy

Correct answer is A

No explanation has been provided for this answer.

677.

The determination of heat of combustion is carried out with

A.

a thermometer

B.

a bomb calorimeter

C.

an evaporating dish

D.

a boiling tube

Correct answer is B

No explanation has been provided for this answer.

678.

Which of the following gases contains the highest number of atoms at s.t.p?

A.

6 moles of neon

B.

3 moles of oxygen

C.

2 moles of chlorine

D.

1 mole of ethane

Correct answer is A

No explanation has been provided for this answer.

680.

Which of the following apparatuses can be used to measure accurately a specific volume of a liquid?

A.

Beaker

B.

Conical flask

C.

Measuring cylinder

D.

Pipette

Correct answer is C

No explanation has been provided for this answer.