10th Class Chemistry Chapter 8 Chemical Industries Short Question Answer
| Class: | 10th Class | Subject: | Chemistry |
| Chapter: | Chapter 8 | Board: | All Boards |
We are providing all Students from 5th class to master level all exams preparation in free of cost. Now we have another milestone achieved, providing all School level students to the point and exam oriented preparation question answers for all science and arts students.
After Online tests for all subjects now it’s time to prepare the next level for Punjab board students to prepare their short question section here. We have a complete collection of all classes subject wise and chapter wise thousands questions with the right answer for easy understanding.
Here we are providing complete chapter wise Chemistry questions and Answers for the 10th class students. All the visitors can prepare for their 10th class examination by attempting below given question answers.
In this List we have included all Punjab boards and both Arts and Science students. These Boards students can prepare their exam easily with these short question answer section
Lahore Board 10th classes short questions Answer
Rawalpindi Board 10th classes short questions Answer
Gujranwala Board 10th classes short questions Answer
Multan Board 10th classes short questions Answer
Sargodha Board 10th classes short questions Answer
Faisalabad Board 10th classes short questions Answer
Sahiwal Board 10th classes short questions Answer
DG Khan Board 10th classes short questions Answer
Bahwalpur Board 10th classes short questions Answer
All above mention Punjab Boards students prepare their annual and classes test from these online test and Short question answer series. In coming days we have many other plans to provide all kinds of other preparation on our Gotest website.
How to Prepare Punjab Board Classes Short Question Answer at Gotest
- Just Open the desired Class and subject which you want to prepare.
- You have Green bars which are Questions of that subject Chapter. Just click on Bar, it slides down and you can get the right answer to those questions.
- You can also Rate those question Answers with Helpful or not to make it more accurate. We will review all answers very carefully and also update time to time.
Now you can start your preparation here below
10th Class Chemistry Chapter 8 Chemical Industries Short Question Answer
Define blister copper?
The molten matte is shifted from converter to sand moulds and is allowed to cool. The dissolved gases escape out forming blister on the surface of solid copper. It is called blister copper. It is 98% pure copper.
Define gangue.
The earthly and other impurities associated with minerals are called gangue.
State Urea formation:
When ammonium carbonate is evaporated with the help of steam. It dehydrates to form Urea. NH₃COONH₄⟼ NH₂CONH₂ + H₂O
Give two advantages of solvay's process.
1. Carbon dioxide and ammonia are recovered and reused.
2. Sodium carbonate of very high purity is obtained.
Give names of raw material used in Urea manufacturing?
Ammonia Carbon dioxide
Give names of raw material used in solvay's process.
Brine NaCl Lime stone CaCO₃ Ammonia gas Nh₃
Define principle of solvay's process.
Principle of solvay’s process lies in low solubility of sodium bicarbonate at low temperature. i.e. 15 oc when, CO₂ is passed through an ammonia Cal solution of NaCl called brine only NaHCO3 precipitate.
Define principle of froth floatation.
Froth flotation is based on the wetting characteristics of the ore and gangue particles with oil and water respectively.
Define Metallurgy.
The process of extraction of a metal in pure form on a large scale with minimum case from its ore by physical or chemical mean is called metallurgy.
ICI stand for.
Imperial chemical industries.
Define refining?
Refining process is the separation of crude oil mixture into various useful fractions.
Nate two ores of copper.
Copper glance Cu₂S Chalcopyrite CuFeS₂.
Give use of kerosene oil?
Used as domestic fuel, a special grade of it is used as jet fuel.
Name fraction of petroleum.
Petroleum gas Petroleum ether Gasoline Kerosene oil Diesel oil fuel oil.
How petroleum is extracted?
Petroleum is extracted by drilling holes into earth’s crust where the oil is formed.
Why is lime added in the smelting process?
Lime is used to separate the gangue in the form of slag.
Give the advantages of Solvay's process.
1. It is a cheap process as raw materials are available at very low prices.
2. Carbon dioxide and ammonia are recovered and reused.
3. Process is pollution free, because the only waste is calcium chloride solution.
4. Sodium carbonate of very high purity is obtained.
Which fraction of petroleum is used in the form of LPG?
Liquid petroleum gas.
Give use of fuel oil
It is use in ships and industries to heat boilers and furnaces.
Give use of petroleum ether.
Used as laboratory solvent and for dry cleaning purpose.
Describe principle of fractional distillation.
The principle of fractional. Distillation is based upon a separation of substance depending upon their boiling point.
What is difference between slag and matte?
Silage mixture of metals silicate and phosphates while cuprous sulphide and ferrous sulphide form a mixture. This molten mixture is called matte.
Fraction of residual oil.
Lubricants Asphalt Paraffin wax Petroleum coke.
Petroleum is a source of fuels. Name two fuels which are not obtained from petroleum?
There are several types, such as hydrogen fuel (for automotive uses). Ethanol, and biodiesel, which are also categorized as a liquid fuel.
What has to be done to crude oil before it is useful?
Crude oil is a mixture of hydrocarbons. These are separated into useful products, such as fuels, using a process called fractional distillation in fractionating tower.
Sketch flow sheet diagram of refining of petroleum.
Flow sheet diagram of refining of petroleum:
Describe the composition of petroleum?
Composition of petroleum:Petroleum is essentially a mixture of hydrocarbons particularly alkies. Cycloalkanes and aromatic hydrocarbons. Apart from hydrocarbons it may also contain compounds containing Oxygen and nitrogen.
Make a list of raw materials for Solvay process?
Raw material:
1. Ammonia
2. Brine (concentrated sodium chloride solution)
3. Lime stone as a source of carbon dioxide and slaked lime, Ca(OH)₂
Describe composition of urea?
Urea or carbamide is an organic compound with the chemical formula CO(NH₂)₂. The molecule has two -NH₂ groups joined by a carbonyl (C=O) functional group.
State five specific products made from crude oil?
Natural gas, Butane, Propane, Gasoline, Home heating oil, Plastics, Kerosene and jet fuel, Diesel.
How to Write Perfect Short Answers?
In Board Exams, the examiner looks for specific keywords and presentation. Here is how to attempt Chapter 8 questions:
- Ideal Length: Write 3 to 5 lines for each short question. Too short gets fewer marks, too long wastes time.
- Highlighting: Use a Blue Marker to highlight key dates, names, or scientific terms in your answer.
- Units & Formulas: Always write the formula and SI unit. Without units, 0.5 marks are deducted.
More Related Resources
Can't find what you're looking for? Search below:
