امتحانات chemistry للصف الثالث الثانوي لغات بالإجابات pdf
ينشر «شبابيك» نماذج امتحانات على مقرر مادة Chemistry لطلبة الثانوية العامة بمدارس اللغات، في ملف إلكتروني pdf يتاح الاطلاع عليه أو تحميله.
نماذج امتحانات chemistry تالتة ثانوي لغات 2025
أعدت الامتحانات مطابقة للمواصفات التي حددتها وزارة التربية والتعليم والتعليم الفني، ومثال الأسئلة الواردة فيها ما يلي:
1. Two elements (A) and (B) of the first main transition series have abnormal electron configuration.
Which of the following statements does not describe both elements?
(a) They have the same atomic diameter, so a substitutional alloy can be made of the two elements.
(b) They have the same number of single electrons in the last main energy level.
(c) They resist the influence of atmospheric oxygen.
(d) They have two incomplete main energy levels.
2. Element (X) is used as a catalyst in the industrial preparation of ammonia gas by Haber-Bosch method, and element (Y) is used in the manufacture of car tires and printing inks, when the two elements are chemically combined, the produced alloy is ..........
(a) duralumin.
(b) stainless steel.
(c) cementite.
(d) iron.
3. A transition element of the first main transition series has the electronic structure : ns2, (n−1)dn+4
Which of the following processes cannot be used for?
(a) Detection and treatment of tumors.
(b) Manufacture of heating coils and electric furnaces.
(c) Making an alloy resistant to rust and acids.
(d) Hydrogenation of oils as a catalyst.
4. The processes that take place in the extraction of iron from iron ore follows the sequence ..........
(a) roasting – crushing – reduction.
(b) crushing – oxidation – roasting.
(c) sintering – reduction – steel production.
(d) crushing – sintering – reduction.
5. The main reagent of nitrite ion and main reagent of nitrate ion can be differentiated by using all the following, except ..........
(a) sodium chloride.
(b) sodium iodide.
(c) sodium thiosulphate.
(d) barium chloride
