Chemistry Archives - Page 48 of 414

It is difficult to achieve an orderly arrangement of the molecules of a gas because they?

A. have no definite shape B. have little force of attraction between them C. can collide with one another in the container D. are too small in size Correct Answer: Option B – have little force of attraction between them

According to charles’ law; the volume of a gas becomes zero at?

by Sunday | Oct 14 | Chemistry JAMB

A. 0°C B. -100°C C. -273°C D. -373°C Correct Answer: Option C = -273°C

A chemical reaction is always associated with?

by Sunday | Oct 14 | Chemistry JAMB

A. an increase in the composition of one of the substance B. a change in the volume of the reactants C. a change in the nature of the reactants D. the formation of new substance Correct Answer: Option D – the formation of new...

When a solid substance disappears completely as a gas on heating; the substance is said to have undergone?

by Sunday | Oct 14 | Chemistry JAMB

A. evaporation B. distillation C. crystallization D. sublimation Correct Answer: Option D – sublimation

To obtain pure carbon (II) oxide from its mixture with carbon (IV) oxide; the mixture should be?

by Sunday | Oct 14 | Chemistry JAMB

A. passed over heated copper (II) oxide B. bubbled through water C. bubbled through concentrated tetroxosulphate (VI) acid D. bubbled through sodium hydroxide Correct Answer: Option D – bubbled through sodium hydroxide

It is difficult to achieve an orderly arrangement of the molecules of a gas because they?

According to charles’ law; the volume of a gas becomes zero at?

A chemical reaction is always associated with?

When a solid substance disappears completely as a gas on heating; the substance is said to have undergone?

To obtain pure carbon (II) oxide from its mixture with carbon (IV) oxide; the mixture should be?

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