The science field where we study various chemical compounds and their properties, as well as reactions, and how they are used in everyday life is referred to as Chemistry. 9th Class Chemistry Guess Paper 2023 Punjab Board. Chemistry is a vital science subject for 9th-grade science students. Essays that are guessing are essential to students in the ninth grade. For students in 9th grade, we designed the 9th-grade Chemistry Guess Paper 2024 that you can download here. The papers cover subjects like computing, physics, chemistry biology, mathematics, and biology. The chemistry guess papers 9 classes are crucial in relation to your exam on the board.
Past Paper Of Chemistry 9 Class 2024
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Class 9 Chemistry Past Papers 2024
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9th Class Chemistry Guess Papers 2024 Punjab Board PDF
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About Nineth-Class Chemistry
Chemistry is the research into the physical properties and behaviour of matter. It is a field of study in natural sciences that studies the elements that compose matter, as well as the compounds composed of molecules, atoms and ions. They are their structure, composition as well as their properties, behaviour and the modifications they undergo in reaction when they interact with different substances.
FUNDAMENTALS OF CHEMISTRY.
MULTIPLE CHOICE
The number of naturally occurring elements is.
- O –Shell
- N – Shell
- L – Shell
- M – Shell
_________ consist of three sub –shell.
- M –Shell
- L – Shell
- N – Shell
- O – Shell
Which one of the following is the Empirical formula of Benzene?
- C2H2O4
- C2H2O
- C6H6
- CH
Empirical formula of Glucose is.
- CH2O
- CHO
- C2HO
- C2H2O
The valance of iron in ferrous sulphate is.
- +2
- +3
- +4
- +5
Molecular mass of water is.
- 18 amu
- 18 g
- 18 mg
- 18 kg
How much mass is in one mole of water?
- 2
- 3
- 16
- 18
One amu is equivalent to.
- 1.66 x 10-24 mg
- 1.66 x 10-24 g
- 1.55 x 10-24 kg
- 1.66 x 10-23 g
Which one of the following molecules is not tri-atomic?
- H2
- O3
- H2O
- CO2
All of the following are triatomic molecule examples
- H2
- O2
- H2O
- CO2
SHORT QUESTIONS:
- What is meant by element? Explain with example
- Define Valency. Write the Valency of Na.
- Define Avogadro’s number.
- Define mole and give an example
- Calculate the gram molecules in 40 g of phosphoric acid.
- Define atomic mass unit.
- Difference between Compound and Element.
- What is meant by mixture? Give one example.
- Define relative atomic mass on the basis of C-12
- Define the molecular formula and give an example
- Write down the chemical formula of water and sugar.
- Differentiate between molecular mass and formula mass
- LONG QUESTIONS:
- State any three/five differences between compound and mixture.
- The number of (CO2) molecules in a pot is 3.01 x 1030 calculate the moles and mass.
- Explain two types of molecules on the basis of types of atoms.
- Define Atomic number and Mass Number for example.
9th Class Chemistry Paper 2024 Lahore Board
All levels 9 of the Punjabi Quiz Papers will be accessible on this site, and you’ll be able to access the Quiz Papers. 9th Class Chemistry Past Paper Papers Guess papers on all subjects in the 9th grade are available here for download for no cost. “Remember that 9th class Guess Paper for the pure study is updated each year. Paper is prepared each year in accordance with the latest calendar.