Fsc Part 2 Online Preparation for Chemistry Chapter 15 (Common Chemical Industries in Pakistan)

Online Short Questions For Chapter 15 "12th Class Chemistry Chapter 15 Short Questions Preparation "

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Chemistry - 12th Class Chemistry Chapter 15 Short Questions Preparation

Question # 1

Why nitrogen is important for plants?

  • Ans 1: Nitrogen is required during the early stage of plant growth for the development of stems and leaves,It is the main constituents of protein ,impar green colour to the leaves an enhance the yield and quality of the plants.
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Prepare Complete Set Wise Questions For Chapter 15 "12th Class Chemistry Chapter 15 Short Questions Preparation "

12th Class Chemistry Chapter 15 Short Questions Preparation - Set 1

Question # 1

Why nitrogen is important for plants?

  • Ans 1: Nitrogen is required during the early stage of plant growth for the development of stems and leaves,It is the main constituents of protein ,impar green colour to the leaves an enhance the yield and quality of the plants.
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12th Class Chemistry Chapter 15 Short Questions Preparation - Set 2

Question # 1

Why wet cleaning is done in paper manufacture?

  • Ans 1: Wet cleaning removes the remaining dust particles,and the soluble materials get dissolved in water.
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12th Class Chemistry Chapter 15 Short Questions Preparation - Set 3

Question # 1

How digestion process is carried out in paper industry?

  • Ans 1: From wet digestion,the material is sent to digester ,The digester is usually 10 meters in length and 2 meters in diameter,It is made of steel and wrought iron,This is the main unit of process,The digestion process can be either batch or continuous.As the raw material enter into digester steam is introduced at the bottom and a liquor containing sodium sulphate is injected simultaneously to cover the raw material.
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12th Class Chemistry Chapter 15 Preparation

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