Grade 1, 2, & 3 Chemistry: Free Trial*

G. 8 & 9

Chemistry

F. 1, 2, & 3

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G. 8 & 9 / F. 1, 2, & 3

Chemistry: Free Trial*

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1 / 10

1. Which of the following elements is the odd one out and why?

A. Helium because it is a very light element.

B. Hydrogen because it is not a noble gas.

C. Krypton because it is used to kill superheroes.

D. Neon because it is the only element that flashes on and off.

2 / 10

2. Which of the following is the name for group 1 in the periodic table?

A. Noble gases

B. Alkali metals

C. Halogens

D. Alkaline earth metals

3 / 10

3. Which of the following is the name for group 8 in the periodic table?

A. Halogens

B. Alkaline earth metals

C. Alkali metals

D. Noble gases

4 / 10

4. The method used to separate coloured dyes in ink is ...

A. Filtration

B. Distillation

C. Evaporation

D. Chromatography

5 / 10

5. Which of these is NOT a compound?

A. Hydrochloric acid

B. Carbon monoxide

C. Chlorine

D. Propane

6 / 10

6. Which of these word equations is INCORRECT?

A. Iron $+$ chlorine $\longrightarrow$ iron chloride

B. Hydrogen $+$ chlorine $\longrightarrow$ hydrogen chlorine

C. Copper $+$ oxygen $\longrightarrow$ copper oxide

D. Magnesium $+$ oxygen $\longrightarrow$ magnesium oxide

7 / 10

7. Strong acids and strong alkalis are ...

A. Corrosive and/or caustic

B. Able to turn blue litmus paper red

C. Sweet

D. Sour

8 / 10

8. When zinc carbonate reacts with dilute hydrochloric acid the products are:

A. zinc sulphate, carbon dioxide, water

B. carbon dioxide, water

C. Zinc chloride, carbon dioxide

D. zinc chloride, carbon dioxide, water

9 / 10

9. During a chemical reaction, new substances are formed from old ones. Which of the following is NOT ALWAYS true?

A. There is often a temperature change

B. There is often a colour change

C. The total mass of products = total mass of reactants

D. New substances can be changed back to the original ones

10 / 10

10. In the following reaction, which is the products

$Mg +2HCl \longrightarrow H_{2} + MgCl_{2}$ ?

A. Magnesium and hydrochloric acid

B. Hydrogen and magnesium chloride

C. Magnesium and hydrogen

D. Hydrochloric acid and magnesium chloride

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