Skip to content
p.paperbanao.
Continue

Punjab (PTB) · Chapter test · Free

9th Class Chemistry Chapter 9 TestGroup Properties and Elements

30 marks · 40 minutes · 21 questions. Covers: CHAP 9: Group Properties and Elements.

Your school name

9th Class Chemistry Chapter 9 Test

9th Class · Chemistry · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 30Time: 40 minutes

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

  1. Which element has high electronegativity value?

    1. Flourine

    2. Oxygen

    3. Chlorine

    4. Nitrogen

  2. Which statement is incorrect about non-metals?

    1. They are dull and cannot polish

    2. They are brittle

    3. They are poor conductors

    4. None of these

  3. What % of the elements in the periodic table are metals?

    1. 80%

    2. 65%

    3. 75%

    4. 90%

  4. Non-metals are generally soft, but which one of the following is extremely hard?

    1. Graphite

    2. Phosphorus

    3. Iodine

    4. Diamond

  5. How many total non-metals exists in solid, liquid or gas at room temperature

    1. 10

    2. 20

    3. 30

    4. 40

  6. Which one of the following is yellowish green gas?

    1. F2

    2. CI2

    3. Br2

    4. I2

  7. The elements present in a group of periodic tables shows:

    1. Similar chemical properties

    2. Different chemical properties

    3. Similar physical properties

    4. Different physical properties

  8. The gain of electron is called:

    1. Oxidation

    2. Reduction

    3. Hydrolysis

    4. None of these

  9. The elements in which d-orbital is in the process of filling constitute a group of metals called:

    1. Alkali metals

    2. Alkaline earth metals

    3. Transition metals

    4. Noble gases

  10. Atomic radii of halogens:

    1. Decreases in a group

    2. Increases in a group

    3. Remains same

    4. Slightly decreases

Q2. Short questions (Attempt any 6 of 8 · 6 × 2 = 12)

  1. What are non-metals?

  2. Keeping in view the trends of reactivity in first group elements how would they react with oxygen?

  3. What is relationship between water and alkali metals?

  4. What is role of iron in the Hyber process?

  5. Why melting and boiling point of Bromine and Iodine higher than those of chlorine and fluorine?

  6. How metal halides are formed?

  7. What are alkali metals?

  8. How does alkali metals react with water?

Q3. Long questions (Attempt any 2 of 3 · 2 × 4 = 8)

  1. Explain the role of sodium as heat transfer agent in the atomic nuclear power plant. Which property of sodium is utilized in this role.

  2. Why do the chemical reactivities of alkali metals increase down the group whereas they decrease down the group in case of halogens?

  3. Why aluminum metal is used in the manufacture of cooking utensils whereas magnesium is not considered useful for this purpose?