9th Class Chemistry Guess Papers 2024 Punjab Board

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9th Class Chemistry Guess Papers 2024

Our experienced staff tried its best to provide you with the maximum important material which can be asked in the board exam of chemistry. So we prepared these important guess papers of chemistry for the students of the 9th class science group. But you will be able to get good marks in chemistry if you make a practice of these helpful guess papers. These guess papers can be prepared online and can also be downloaded in pdf. 9th Class Chemistry Guess Papers 2024.

CHAPTER NO.1

FUNDAMENTALS OF CHEMISTRY.

MULTIPLE CHOICE

1. The number of naturally occurring elements is.
   1. 02
   2. 08
   3. 108
   4. 114
2. Which one of the following is the Empirical formula of Benzene?
   1. C₂H₂O₄
   2. 2nd C₂H₂O
   3. C₆H₆
   4. CH
3. The empirical formula of Glucose is.
   1. CH₂O
   2. CHO
   3. C₂HO
   4. C₂H₂O
4. The valance of iron in ferrous sulfate is.
   1. +2
   2. +3
   3. +4
   4. +5
5. Molecular mass of water is.

1. 18 amu
2. 18 g
3. Third 18 mg
4. 18 kg
5. How much mass is in one mole of water.
   1. 2
   2. 3
   3. 16
   4. 18
6. One amu is equivalent to.
   1. 1.66 x 10^-24 mg
   2. 1.66 x 10^-24 g
   3. 1.55 x 10^-24 kg
   4. 1.66 x 10^-23 g
7. Which one of the following molecule is not tri-atomic?
   1. H₂
   2. O₃
   3. H₂O
   4. CO₂
8. All of the following are triatomic molecule examples
   1. H₂
   2. O₂
   3. H₂O
   4. CO₂

SHORT QUESTIONS:

1. What is meant by element? Explain with example
2. Define Valency. Write the Valency of Na.
3. Define Avogadro’s number.
4. Define mole and give an example
5. Calculate the gram molecules in 40 g of phosphoric acid.
6. Define atomic mass unit.
7. Difference between Compound and Element.
8. What is meant by mixture? Give one example.
9. Define relative atomic mass on the basis of C-12
10. Define the molecular formula and give an example
11. Write down the chemical formula of water and sugar.
12. Differentiate between molecular mass and formula mass

LONG QUESTIONS:

1. State any three/five differences between compound and mixture.
2. The number of (CO₂) molecules in a pot is 3.01 x 10³⁰ calculate the moles and mass.
3. Explain two types of molecules on the basis of types of atoms.
4. Define Atomic number and Mass Number with an example.

CHAPTER NO.2

STRUCTURE OF ATOM

MULTIPLE CHOICE:

1. So, Which one of the following shells contains three subshells?
   1. O –Shell
   2. N – Shell
   3. L – Shell
   4. M – Shell
2. _________ consist of three subshells.
   1. M –Shell
   2. L – Shell
   3. N – Shell
   4. O – Shell

3. Deuterium is used to make.

1. Hard water
2. Soft water
3. Heavy water
4. Light water
5. Who discovered the proton?
   1. Rutherford
   2. J.J.Thomson
   3. Neil Bohr
   4. Goldstein
6. The P subshell has.
   1. One orbital
   2. Two Orbital
   3. Three Orbital
   4. Four Orbital
7. Who discovered proton?
   1. Rutherford
   2. J.J.Thomson
   3. Neil Bohr
   4. Goldstein
8. Sub–shell “P” can have maximum number of electrons.
   1. 1
   2. 4
   3. 6
   4. 8

SHORT QUESTIONS:

1. So, Write down the observations of Rutherford atomic model.
2. Compare Rutherford’s atomic theory and Bohr’s atomic theory.
3. Write the electronic configuration of Sulphur
4. Write the electronic configuration of Chloride ions Cl-
5. What is meant by Quantum?
6. Write the electronic configuration of carbon ¹²C₆ by using subshells.
7. Write down the electronic configuration of nitrogen. Its atomic number is 7.
8. defects of Rutherford’s model.
9. What are canal rays?
10. Write electronic configuration of Aluminum.
11. atomic number and electronic configuration of Phosphorous.
12. Write the electronic configuration of an element having 11 electrons.

LONG QUESTIONS:

1. How neutron was discovered? Write the properties.
2. Compare the difference between Ruther Ford’s and Neil Bohr’s atomic theories.
3. State any four /five properties of Cathode rays.

CHAPTER NO. 3

PERIODIC TABLE AND PERIODICITY OF PROPERTIES.

MULTIPLE CHOICE:

1. Who discovered the atomic number.
   1. Dalton
   2. Rutherford
   3. Bohr
   4. H. Mosely
2. How many block are there in modern periodic table of element.
   1. 3
   2. 4
   3. 5
   4. 6
3. The base of the modern periodic table is.
   1. Mass number
   2. Avogadro’s number
   3. Atomic number
   4. Quantum number
4. Horizontal lines called.
   1. Periods
   2. Atomic number
   3. Short periods
   4. Long periods
5. How many groups are there in long form of periodic table?
   1. 5
   2. 18
   3. 10
   4. 20
6. Group 17 belongs.
   1. Halogen
   2. Nobel gases
   3. Alkali metals
   4. None
7. The distance between the nuclear of two carbon atoms.
   1. 154 Pm
   2. 140 Pm
   3. 110 Pm
   4. 115 Pm
8. The electron negativity of nitrogen is.
   1. 2
   2. 3
   3. 4
   4. 5

SHORT QUESTIONS:

• What is meant by periods? Write the names elements of first period.
• Name the elements of 1^st period of period table.
• What is the trend of ionization energy in the period and group?
• Define electron affinity with an example.
• Name the elements of 1^st group.
• Define Ionization Energy.
• What is the trend of ionization energy in the Period?
• Define electronegativity. Write the electronegativity of Nitrogen, oxygen, and Florine.

LONG QUESTIONS:

• Discuss any three important features of the modern periodic table.
• Define atomic radius. Give its trends in periods and group of the periodic table.
• Define the Shielding Effect. Explain its trend in groups and periods.

CHAPTER NO. 4

STRUCTURE OF MOLECULES.

MULTIPLE CHOICE:

1. The number of electrons participated in a single covalent bond.
   1. 2
   2. 3
   3. 6
   4. 8
2. How many electrons are involved in a triple covalent bond?
   1. 2
   2. 4
   3. 6
   4. 8
3. An example of a triple bond is.
   1. O2
   2. C2H4
   3. N2
   4. NH3
4. Which one is a polar molecule?
   1. O₂
   2. Cl₂
   3. HCl
   4. H₂
5. The force among the molecules is.
   1. Covalent force
   2. Metallic force
   3. Intermolecular force
   4. Ionic force
6. The transistor of electron between atoms results in.
   1. Metallic Bounding
   2. Ionic bounding
   3. Covalent bounding
   4. Coordinate covalent bonding.
7. A bond formed between two non–metals is expected to be.
   1. Covalent
   2. Ionic
   3. Polar covalent
   4. Coordinate covalent
8. Identify which pair has polar covalent bonds.
   1. O₂ and Cl₂
   2. But H₂O and HCl
   3. H₂O and N₂
   4. H₂O and C₂H₂

SHORT QUESTIONS:

1. Define double covalent bonds and give examples.
2. Difference between donor atom and acceptor atom.
3. Define a non-polar covalent bond and give an example
4. Define bounding electrons.
5. What do you know about the triple covalent bonds? Give examples.
6. What is HF weak sold?
7. Define polar covalent bonds. Give one example
8. Difference between ion pair and bond pair of electrons.
9. Difference between polar covalent bond and non-polar covalent bond.
10. Which type of covalent bond is formed in N₂ gas?
11. Why water has a polar covalent bond?
12. What is meant by a Metallic bond?

LONG QUESTIONS:

1. Write down the properties of metals.
2. Explain Hydrogen bonding with one example.
3. How coordinate covalent bond is formed? Explain with examples.
4. State any four properties of covalent compounds

CHAPTER NO.5

PHYSICAL STATES OF MATTER.

MULTIPLE CHOICE:

1. Atmospheric pressure is measured by a voltmeter
   1. Manometer
   2. Barometer
   3. Lactometer
   4. 2. One atmospheric pressure is equal to how many Pascal?
   5. a) 101325
   6. 106075
   7. 10325
   8. 10523 
   9. 3. Liquids are denser than gases______________ times.
   10. a) 100
   11. 1000
   12. 10000
   13. 100000

SHORT QUESTIONS:

• What is Charles’s law? Write its equation.
• Describe the effect of temperature on evaporation.
• Why does evaporation increase with the increase in temperature?
• Define evaporation and give an example.

LONG QUESTIONS:

• State Boyle’s Law can be experimentally verified.
• Define boiling point. Explain how it is affected by different factors.
• What is vapor pressure? How it changes with changing temperature.
• Describe three factors that affect evaporation.

CHAPTER NO.6

SOLUTIONS

MULTIPLE CHOICE:

1. The maximum components of the solution.
   1. 5
   2. 3
   3. 4
   4. 2
2. Which one of the following is solid in gas solution?
   1. Smoke in air
   2. Butter
   3. Brass
   4. Fog
3. An example of a solution of a solid solute in a solid solvent is.
   1. Fog
   2. Brass
   3. Cheese
   4. Air
4. Concentration is the Ratio of
   1. Solvent to solute
   2. Solute to solution
   3. Solvent to solution
   4. Both a and b
5. The volume is cm3 of solute dissolved in 100 grams of the solution is called.
   1. % m/m
   2. % m/v
   3. % v/m
   4. % v/v
6. The solubility of which one decreases by increasing temperature.
   1. Ca(OH)₂
   2. KNO₃
   3. NaCl
   4. AgNO₃
7. Which one is an example of suspension?
   1. Albumin solution
   2. Soap solution
   3. Starch solution
   4. Milk of magnesia

SHORT QUESTIONS:

1. Define aqueous solution. Write its components.
2. Define unsaturated solution.
3. What is the difference between a solution and an aqueous solution?
4. What do you mean by volume/volume%?
5. Difference between Concentrated solution and dilute solution.
6. Define saturated solution.
7. How much amount of KOH is required to form 1 molar solution?
8. How molar solutions are prepared.

LONG QUESTIONS:

1. Explain how dilute solutions are prepared from the concentrated solutions.
2. Write a comparison between suspension and colloid
3. Write the four characteristics of colloids

CHAPTER NO.7

ELECTROCHEMISTRY

MULTIPLE CHOICE:

1. The addition of oxygen during a chemical reaction is called.
   1. Evaporation
   2. Condensation
   3. Reduction
   4. Oxidation
2. The addition of an electron to a substance is called.
   1. Oxidation
   2. Neutralization
   3. Reduction
   4. Ionization
3. Which one is not a strong electrolyte?
   1. HCl
   2. CH3COOH
   3. NaOH
   4. H2SO4
4. Which ones are strong electrolytes?
   1. Sugar
   2. Sodium Chloride
   3. Benzene
   4. Acetic acid
5. An example of a strong electrolyte is.
   1. CH3COOH
   2. Ca(OH)2
   3. C6H6
   4. NaOH
6. Which is not an electrolyte.
   1. Sugar solution
   2. Sulphuric acid solution
   3. Lime solution
   4. Sodium Chloride solution
7. The most common example of corrosion is.
   1. So, Chemical decay
   2. But Rusting of iron
   3. Rusting of aluminum
   4. Rusting of tin
8. The formula of rust is.
   1. Fe₂O₃.NH₂O
   2. Fe₂O₃
   3. Fe(OH)₂. H₂O
   4. Fe(OH)₂

SHORT QUESTIONS:

1. Define oxidation and Reduction Reaction.
2. Define Redox Reaction. Give an example
3. So Define electrochemical cell. While the name of its types.
4. Define electrolyte. Give an example.
5. Which salt is used as an electrolyte in chromium electroplating?
6. Define Alloy and give an example.
7. Calculate the oxidation number of sulfur in H2SO₄
8. Calculate the oxidation number of chlorine in KClO₃
9. Why is galvanizing done?
10. What is meant by electroplating?
11. What difference between corrosion and Rusting?

LONG QUESTIONS:

• Write down four/Five rules for assigning an Oxidation number to an element.
• Define electroplating. Explain the electroplating of chromium in detail.
• What is electroplating? How electroplating of silver is carried out.
• Explain the redox reactions with the help of two examples.
• Explain the process of rusting Iron.
• What is corrosion/ Write four methods for the prevention of corrosion.

CHAPTER NO. 8

CHEMICAL REACTIVITY

MULTIPLE CHOICE:

1. Metals form ion carrying which charge.
   1. Unipositive
   2. Dipositive
   3. Try positive
   4. All
2. The most reactive metal is.
   1. Iron
   2. Gold
   3. Cesium
   4. Aluminum
3. Which metal easily breaks?
   1. Sodium
   2. Aluminum
   3. Selenium
   4. Magnesium
4. Which one of the following is the lightest metal?
   1. Ca
   2. Li
   3. Na
   4. Mg

SHORT QUESTIONS:

1. Write any two uses of Sodium.
2. Which metals are the most malleable and ductile?
3. Define Malleable and Ductile properties of metals.
4. But Write uses of Magnesium.
5. So Write down the names of any two moderate reactive metals.
6. Which is the most precious metal.
7. Define Metallic Character.
8. Write down two uses of Gold.
9. Write down the names of two very reactive metals.
10. Any two physical properties of nonmetals.
11. Why are Sodium Metals more reactive than magnesium.
12. Write two uses of Silver.
13. Why platinum is used for making jewelry?
14. Write any two chemical properties of non-metals.

LONG QUESTIONS:

1. Write down four chemical properties of nonmetals.
2. Derive metals. Also, write three /four chemical properties of metals

9th Class Chemistry Guess Papers 2024

• Our qualified and experienced staff used its experience of many years and made these important guess papers for the students of 9th class.
• 9th class students can get idea about the chemistry board examination as these guess papers are made exactly on the board examination pattern of chemistry.
• If you have practice these guess papers, you can attempt your chemistry exam more easily.
• Download 9th class chemistry guess papers in pdf from the ilmWap website and start practice.
• These guess papers can be downloaded free of cost.
• All students of 9^th class science group can get these beneficial guess papers.

9th Class Chemistry Guess Papers 2024

The students can get the 9th class Chemistry guess paper 2024 from ilmWap website. You will really find these guess papers helpful in the chemistry board exam. The guess papers for all subjects of the 9th class are available here for free.