CIDESCO Questions And Answers 2023

Characteristics of life include: - Answer- Growth and metabolism Example of organic biological substances are: - Answer- Carbohydrates and fats Examples of mineral substances are: - Answer- Paraffin's and petroleum Matter is everything that: - Answer- Occupies space and has weight What property does all matter have? - Answer- All matter has weight Sublimation is the change of matter from: - Answer- A solid to a gas The alternation of the properties of matter without formation of any new substances is called? - Answer- Physical change The immediate change of a solid into vapour is called? - Answer- Sublimation An example of a single called cellular organism is? - Answer- A bacterium Examples of bacteria are? - Answer- Bacilli and cocci Which of the following belongs to the science of chemistry? - Answer- The alternation of the structure of molecules An electrolyte is? - Answer- A substance which, dissolved in water and splits into ION's Example of electrolytes are? - Answer- Acids and salts An example of an electrolyte is? - Answer- Salt solution An acid is an electrolyte because? - Answer- It can conduct an electrical current An example of an inorganic acid is? - Answer- Sulphuric acid An alkali must contain? - Answer- Metal atoms and hydroxyl groups If metal oxide is dissolved in water it forms? - Answer- An alkali PH c