ECZ Chemistry 5070 Practice Questions - Zambia School Certificate GCE - Chemistry (5070) Exam - ECZ Chemistry 5070 Practice Questions - Zambia School Certificate GCE

Question 1

A learner needs to smell a gas produced in a test tube. Which procedure is the safest laboratory practice?

Waft a little of the gas towards the nose with a hand Inhale deeply from the test tube immediately after the reaction starts Pour the contents onto the bench and smell the spill Place the nose directly over the mouth of the test tube

Correct Answer:

Waft a little of the gas towards the nose with a hand

Question 2

Which statement correctly compares particles in a solid with particles in a gas at the same temperature?

Solid particles vibrate about fixed positions; gas particles are far apart and move randomly Both solids and gases have particles that slide over one another in contact Gas particles have no kinetic energy; solid particles have the highest kinetic energy Solid particles are far apart and move randomly; gas particles vibrate about fixed positions

Correct Answer:

Solid particles vibrate about fixed positions; gas particles are far apart and move randomly

Question 3

Brownian motion of smoke particles in air is evidence that

smoke particles are being bombarded by randomly moving air molecules smoke particles decay radioactively and emit visible sparks air is a compound with a fixed formula rather than a mixture air molecules are stationary between collisions with the walls of the container

Correct Answer:

smoke particles are being bombarded by randomly moving air molecules

Question 4

Which technique is most suitable for separating an insoluble solid from a liquid, such as sand from water?

Filtration Fractional distillation Paper chromatography Simple distillation

Correct Answer:

Filtration

Question 5

In the Ministry of Education Ordinary Level Chemistry syllabus, an element is best described as a substance that

consists of only one type of atom can be separated into simpler substances by filtration always exists as diatomic molecules at room temperature contains two or more types of atom chemically combined in a fixed ratio

Correct Answer:

consists of only one type of atom

Exam overview

About this Exam

Prepare with the ECZ Chemistry 5070 Practice Questions - Zambia School Certificate GCE - Chemistry (5070) Exam practice quiz. This question bank includes 100 questions covering acid, mass, sodium, solid, and chlorine. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ECZ Chemistry 5070 Practice Questions - Zambia School Certificate GCE - Chemistry (5070) Exam

This practice set contains 100 questions from the matching question bank and focuses on acid, mass, sodium, solid, and chlorine. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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About this Exam

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ECZ Chemistry 5070 Practice Questions - Zambia School Certificate GCE - Chemistry (5070) Exam

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