WAEC Past Questions and Answers - Page 1384

6,916.

The energy which accompanies the addition of an electron to an isolated gaseous atom is

A.

Atomization

B.

Electronegativity

C.

Electron affinity

D.

Ionization

Correct answer is C

No explanation has been provided for this answer.

6,917.

Propane carbon(IV)oxide diffuse at the same rate because [H = 1.00, C = 12.0, O = 16.0]

A.

They are both gases

B.

Their molecules contain carbon

C.

They have the same relative molecular mass

D.

Both are denser than air

Correct answer is C

No explanation has been provided for this answer.

6,918.

The spreading of the scent of a flower in a garden is an example of_____?

A.

Brownian motion

B.

Diffusion

C.

Osmosis

D.

Tynadal effect

Correct answer is B

No explanation has been provided for this answer.

6,919.

The general gas equation \(\frac{PV}{T}\) = K is a combination of

A.

Boyle's and Charles' laws

B.

Boyle's and Graham's laws

C.

Charles' and Graham's laws

D.

Dalton's and Graham's laws

Correct answer is A

No explanation has been provided for this answer.

6,920.

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

A.

Beaker

B.

Conical flask

C.

Measuring cyclinder

D.

Pipette

Correct answer is D

No explanation has been provided for this answer.