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Punjab (PTB) · Full book test (board pattern) · Free

9th Class Chemistry Full Book Paper

60 marks · About 2 hours (objective and subjective) · 39 questions. Covers: 13 chapters (CHAP 1: States of Matter and Phase Changes to CHAP 13: Laboratory and Practical Skills).

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9th Class Chemistry Full Book Paper

9th Class · Chemistry · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 60Time: About 2 hours (objective and subjective)

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

  1. Nitrogen molecules contains:

    1. Polar covalent bond

    2. Single covalent bond

    3. Double covalent bond

    4. Triple covalent bond

  2. Which element has high electronegativity value?

    1. Flourine

    2. Oxygen

    3. Chlorine

    4. Nitrogen

  3. The ability of carbon atoms to form chains is called:

    1. Isomerism

    2. Catenation

    3. Resonance

    4. Condensation

  4. In which form the energy is stored in a molecule?

    1. Chemical energy

    2. Heat energy

    3. Elastic potential

    4. Mechanical energy

  5. Which of the following contains oxallic acid:

    1. Tomato

    2. Orange

    3. Tamarind

    4. Sour milk

  6. Fossils fuel is responsible for our ...... problem:

    1. Pollution

    2. Particles

    3. Matter

    4. None of these

  7. A mixture in which solute particles do not dissolve in the solvent is:

    1. Solution

    2. Surpension

    3. Colloidal

    4. All of these 

  8. Which of the following groups contain alkaline earth metals?

    1. IA

    2. IIA

    3. VII A

    4. VIII A

  9. Which of the following pair of quantities may be measured in the same unit?

    1. Heat and temperature

    2. Temperature and area

    3. Heat and work 

    4. Length and work

  10. The direction of irreversible reaction is:

    1. Reverse

    2. Forward

    3. Both

    4. None of these

  11. Atomic mass of Sulphur is:

    1. 31.972 amu

    2. 31.92 g

    3. 31.92 kg

    4. All of these

  12. Calcium carries charge:

Q2. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)

  1. Give an example of a radioactive isotope which disintegrates to give a stable atom. 

  2. Differentiate between chemical energy and heat energy.

  3. How variation of solubility at different temperatures can be useful for us? 

  4. Write down the chemical formulas of the following compounds: Calcium phosphate, Aluminium nitride, Sodium acetate, Ammoniun carbonate and Bismuth sulphate.

  5. What is the structure of graphite.

  6. How many atoms does our body replace every year?

  7. How catalyst increase the rate of reaction?

  8. What is the importance of graphene?

Q3. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)

  1. Elaborate an example of dynamic equilibrium which exists in this world between the three physical states of water. 

  2. What are non-metals?

  3. What is meant by AQI?

  4. Differentiate b/w natural & mineral acids?

  5. Is it possible for two metals or two non-metals to form an ionic bond?

  6. What are irreversible reactions? Give few characteristics of them.

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

  8. At which time of the day and night you expect humidity to be maximum?

Q4. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)

  1. Define PPE?

  2. Define structural formula with examples.

  3. How will you avoid systematic and random errors? 

  4. What type of safety precautions ae adopted to avoid damage due to explosive chemicals?

  5. Why are organic compounds not generally soluble in water?

  6. Define precision with an example.

  7. Why sudden shock can cause some chemicals  to explode?

  8. Why carbon forms stable and strong bond?

Q5. Long questions (Attempt any 2 of 3 · 2 × 9 = 18)

  1. How many blocks of elements are present in the periodic table? Are these blocks helpful in studying the properties of elements?

  2. What are flammable and explosive chemicals? Describe the safety instructions for handling hazardous chemicals in laboratory.

  3. Write detailed note about atomic number and mass number.