الحلقة الثانية - كيمياء ثانوية عامة لغات 2024

بعد ما تخلص الفيديو ، حاول تحل الأسئلة دي :
1.
Which one is not properties of Transition Metals?
Hard and strong
Reactive
Malleable
High melting point
2.
Which metal is NOT a transition metal?
Vanadium
Chromium
Cesium
Aurum
3.
How is mercury unlike a typical transition metal?
Very reactive
Liquid at room temperature
Shiny
Magnetic
4.
Cobalt is used to colour paints, inks, glass, ceramics and even makeup. What colour is it?
Blue
Red
Purple
Yellow
5.
Which metal is the most widely used (accounts for 95% of total metal production in world)?
Iron
Nickel
Gold
Silver
6.
Which transition metal is used as a catalyst to make ammonia (Haber Process)?
Zinc
Platinum
Gold
Iron
7. Transition elements form coloured compounds: what colour are Dichromate compounds?
Orange
Pink
Yellow
Red
9.
Which metal is not used in making a coin?
Au
Ag
Ni
Fe
10.
Which one is not Strong Magnetic?
Iron
Nickel
Cobalt
Silver
11.
What is the main reason Gold is expensive?
Abundance in nature
Shiny and beautiful
Rare and strong
Good electric conductor and unreactive
12.
Which one is not made from Iron?
Hemoglobin
Construction
Utensil
Electronics

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