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Chemistry Past Questions

Study and practice Chemistry past questions with answers and detailed explanations. Then test your knowledge using our interactive CBT practice platform and prepare confidently for your upcoming examinations.

42 questions JAMB 2505 WAEC 1623 NECO 168 CUSTOM 10

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Past Questions

42 questions

Question 1 of 2 42 total questions

Question 21

neco 2008

Which of the following laws is obeyed If at constant temperature, 200cm of hydrogen at 1.5 × 10m⁵Nm^-2pressure becomes 300cm³ at 1.0 × 10⁵Nm^-2 pressure?

AAvogadro’s

BBoyle’s

CCharles’

DFaraday’s

EGraham’s

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Question 22

neco 2008

The type of reaction ethyne mainly undergoes is

Aaddition

Bcarboxylation.

Cesterification

Dsaponification

Esubstitution