📚 مادة الاختبار: Science — Preparatory 1
تدريب عام: Unit 1 : Chemical Substances (Science) - Preparatory 1
سؤال من
السؤال 1
Which property distinguishes metals from nonmetals in terms of heat transfer?
السؤال 2
What happens to the concentration of hydroxide ions (OH-) as a solution becomes more alkaline?
السؤال 3
Which type of salt solution will have a pH value less than 7?
السؤال 4
Milk of magnesia, containing magnesium hydroxide, is used to neutralize gastric acidity.
السؤال 5
Which nonmetal oxide is described as dissolving in water to form sulphuric acid (H₂SO₄)?
السؤال 6
Which of the following salts is generally considered insoluble or sparingly soluble in water?
السؤال 7
What type of statue is mentioned at the entrance of Qasr El-Nile bridge?
السؤال 8
Molten salts conduct electricity.
السؤال 9
All metals are solids at room temperature.
السؤال 10
How does the strength of an alkaline solution change as its pH value increases?
السؤال 11
When an acid reacts with an alkali, water is always one of the products formed.
السؤال 12
What acid accumulates in muscles and causes cramps when oxygen is lacking?
السؤال 13
Which of the following is a characteristic property of strong acids?
السؤال 14
What is another term used to describe an ion composed of more than one atom of more than one element?
السؤال 15