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9th Class General Science Online Preparation
9th Class English Medium Subjects
9th Class Urdu Medium Subjects
Online Short Questions For Chapter 2 "9th Class General Science English Medium Chapter 2 Preparation "
Try The Short Questions For 9th Class General Science English Medium Chapter 2 Preparation
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Total Questions10
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Available Sets4
General Science - 9th Class General Science English Medium Chapter 2 Preparation
Question # 1
Use of Magnesium
- Ans 1: Because of its low density Mg is used in preparing light but rough alloys such as magnalium . These alloys are used for the construction of cars, aircrafts and moving parts of machines.
9th Class General Science English Medium Chapter 2 Preparation - Set 1
Question # 1
Use of Magnesium
- Ans 1: Because of its low density Mg is used in preparing light but rough alloys such as magnalium . These alloys are used for the construction of cars, aircrafts and moving parts of machines.
9th Class General Science English Medium Chapter 2 Preparation - Set 2
Question # 1
What is hydrocarbon
- Ans 1: Hydrocarbons are the simplest organic compounds, which are made up of only two elements i.e. hydrogen and carbon.
9th Class General Science English Medium Chapter 2 Preparation - Set 3
Question # 1
Use Chlorine
- Ans 1: Chlorien gas is very poisonous but it has many beneficial uses in daily life.
- Ans 2: Antiseptic: It is used to kill germs and bacteria and is commonly used in domestic. It is also used in water purification and in swimming pools.
- Ans 3: PVC: Polyvinyl chloride is a common plastic compound of chlorine and is known as insular or as a wate proofing material.
9th Class General Science English Medium Chapter 2 Preparation - Set 4
Question # 1
Write importance of expansion.
- Ans 1: This property helps nature to preserve fish and other aquatic animals in winter, in countries where freezing of water takes place during winter.
- Ans 2: 2- The soluble air present in the winter below the ice helps animals to breath and thus they spend a nice winter under a thick blanket of ice.
9th General Science English Medium Chapter 2 Preperation
Here you can prepare Short Questions of 9th General Science English Medium Chapter 1 (Our Life and Chemistry). Click the button for 100% free full practice test.
