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Question 1 of 11

1. Question
1 point(s)

CHEM0404010
Which of the halogens exist as a reddish-brown liquid at room temperature?

Chlorine

Iodine

Fluorine

Bromine

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Question 2 of 11

2. Question
1 point(s)

CHEM0404020
Which of the following is chemically most reactive among halogens?

Fluorine

Chlorine

Bromine

Iodine

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Question 3 of 11

3. Question
1 point(s)

CHEM0404030
Which of the following statements is TRUE about the Group 17 elements?

they are strong materials when in solid.

they have high boiling points.

they are coloured when in the gaseous state.

they are good conductors of electricity.

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Question 4 of 11

4. Question
1 point(s)

CHEM0404040
Which of the following statement is TRUE about group 17 elements.

I. They are called the halogen.

II. Fluorine and bromine dissolve in water to form acidic solution.

III. All group 17 elements are soluble in water.

IV. All group 17 elements can react with sodium hydroxide to form salt.

Correct

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Question 5 of 11

5. Question
1 point(s)

CHEM0404050
Which of the following is correct about the characteristic of elements in group 17 in the periodic table as going down the group?

I. The size of the atom decreases down the group.

II. The boiling point of the elements increases down the group.

III. The colour of the elements become darker down the group.

IV. The reactivity of the elements decreases down the group.

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Question 6 of 11

6. Question
1 point(s)

CHEM0404060
Both chlorine and bromine are elements in group 17 in the periodic table. The boiling point of chlorine is lower than bromine. Which statement below explains this phenomena?

The relative atomic mass of chlorine is less than that of bromine.

The proton number of chlorine is less than that of bromine.

The atomic radius of chlorine is less than that of bromine.

The electronegativity of chlorine is higher than that of bromine.

Correct

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Question 7 of 11

7. Question
1 point(s)

CHEM0404070
Element X is located in the same group as bromine in the periodic table of elements. Which of the following is true about element X?

I. It forms ions with charge -1.

II. It exist as monoatomic element in nature

III. It has 7 valence electrons.

IV. It forms acidic solutions when react with water.

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Question 8 of 11

8. Question
1 point(s)

CHEM0404080
Element P dissolve in water to produce an acidic solution. The solution can turn litmus paper colourless. Which of the following is most likely to be P?

Nitrogen

Chlorine

Sodium

Phosphorus

Correct

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Question 9 of 11

9. Question
1 point(s)

CHEM0404090
Which of the following is the product formed when bromine reacts with sodium hydroxide?

I. H₂O

II. NaBr

III. O₂

IV. NaOBr

Correct

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Question 10 of 11

10. Question
1 point(s)

CHEM0404100
Which of the following is the product formed when chlorine gas dissolves in water?

I. Hydrochloric acid

II. Hydrogen chloride

III. Hypochlorus acid

IV. Hyperchloric acid

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Question 11 of 11

11. Question
1 point(s)

CHEM0404110
Which of the following are the uses of chlorine?

I. As antioxidant

II. As bleaching agent

III. To kill microorganism in water

IV. To manufacture household disinfectants

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