Soap is the term for a salts of a:
Soap is formed from the salts of fatty acids.
Surfactants reduce the_________of water.
Surfactants reduce the surface tension of water, allowing it to spread more easily.
The carboxylate end of the soap molecule that is attracted to water is called________
The carboxylate end of the soap molecule is hydrophilic, meaning it is attracted to water.
The use of potassium hydroxide produced a:
Potassium hydroxide is used to produce soft soap.
The citric acid is used in preparation of cold drinks for:
Citric acid is used to give cold drinks a sour taste.
The centrifuge machine used for separation of:
A centrifuge machine is used for separating crystals, such as sugar crystals from molasses.
The abrasives are:
Abrasives are typically water-insoluble minerals used for cleaning and scrubbing.
The harvesting is most important step of:
Harvesting is a crucial step in the preparation of sugar, particularly from sugar cane.
Which of the following is used as jet fuel:
Kerosene oil is commonly used as jet fuel.
Which one of the following is not a fraction of crude oil?
Ammonia is not a fraction of crude oil.
What is petroleum primarily made up of?
Petroleum is primarily composed of a complex mixture of hydrocarbons.
How is petroleum formed?
Petroleum is formed by the decomposition of dead plants and animals under the Earth's crust over millions of years.
What is the method used to separate petroleum into different useful products?
Fractional distillation is the method used to separate petroleum into different useful products based on their boiling points.
What is the primary focus of the pharmaceutical industry?
The primary focus of the pharmaceutical industry is developing medications and vaccines.
What is the main purpose of the chemical industry?
The main purpose of the chemical industry is converting raw materials into valuable products.
What is the name of the reaction used in soap preparation?
The reaction used in soap preparation is called saponification.
Which alkali produces hard soap?
Sodium hydroxide is the alkali used to produce hard soap.
What is the role of soap in cleaning?
Soap emulsifies oils and helps carry them away with water, making it effective for cleaning.
Which of the following oils is commonly used in soap making?
Soybean oil is commonly used in soap making.
What is the purpose of abrasives in soaps?
The purpose of abrasives in soaps is to remove grease and dirt from the skin.
Which of the following is a water-insoluble abrasive used in soap?
Talc is a water-insoluble abrasive used in soap.
What are the two major raw materials used in soap preparation?
The two major raw materials used in soap preparation are fats and alkali.
What is the process called where impurities settle out during clarification?
The process where impurities settle out during clarification is called defecation.
What machine is used for separating sugar crystals from molasses?
A centrifuge is used for separating sugar crystals from molasses.
What are the raw materials required for sugar preparation?
The raw materials required for sugar preparation are sugar cane, lime, and water.
Which of the following ingredients is added to soft drinks to give them a sour taste?
Citric acid is added to soft drinks to give them a sour taste.
What is petroleum commonly known as?
Petroleum is commonly known as rock oil.
What are the main elements present in petroleum?
The main elements present in petroleum are hydrogen and carbon.
What is fractional distillation used for in the petroleum industry?
Fractional distillation is used to separate crude oil into different components based on their boiling points.
Which petroleum fraction is used as fuel for cars?
Gasoline is the petroleum fraction used as fuel for cars.
Which disease has been globally eradicated according to WHO?
Smallpox has been globally eradicated according to the WHO.