3272677
Descrição
Quiz por SHRIYA SHARMA , atualizado more than 1 year ago
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Criado por SHRIYA SHARMA
mais de 9 anos atrás
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Questão 1
Questão
What are Transition metals ?
Responda
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They are strong metals.
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They are found in the central block of the periodic table. They are much less reactive than group 1 metals. Copper, iron and nickel are very useful transition metals.
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They are strong metals
Questão 2
Questão
Tick the two corrects facts on Transition metals.
Responda
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They have a high melting point.
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They are really reactive and more reactive then Aluminium.
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They have a high density
Questão 3
Questão
Do they form colored compounds ?
Responda
- True
- False
Questão 4
Questão
Tick the correct fact on Transition metals.
Responda
-
Transition metals don't form compounds.
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When transition metals form compounds the transition metal ion form variable charges. For example, in copper oxide. Cu0, the copper ions have 2+ Charge, while in copper oxide Cu20 the copper ions have a 1+ charge
Questão 5
Questão
What does the term 'Hydrated' mean ?
Responda
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When someone gets dehydrated.
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The compound that contains water.
Questão 6
Questão
Why is titanium expensive ?
Responda
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It is really strong
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Its looks attractive
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It is difficult to extract titanium from its ore.
Questão 7
Questão
What is the main ore of Titanium ? AND SYMBOL
Responda
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Bauxite, Ba02
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Rutile, Ti02
Questão 8
Questão
What is the equation when Titanium Chloride reacts with Magnesium?
Responda
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Titanium Chloride + Magnesium - Magnesium + Titanium Chlorine
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Titanium + Magnesium - Titanium + Magnesium Chloride
Questão 9
Questão
Tick the correct fact on the extraction of Titanium.
Responda
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It extraction is really simple
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It requires many steps and requires a lot of energy so its very expensive.
Questão 10
Questão
Does titanium have a low density ?
Responda
- True
- False
Questão 11
Questão
Titanium appears to be unreactive because _
Responda
-
its surface reacts with a layer of titanium oxide, which prevents any further reaction taking place.
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its the low in the reactivity series
Questão 12
Questão
Is copper un reactive with water ?
Responda
- True
- False
Questão 13
Questão
Is Aluminium a transition metal ?
Responda
- True
- False
Questão 14
Questão
WHAT ARE CARAT SCALE AND THE FINENESS SCALE USED FOR ?? ( QUIZ IS NEARLY DONE)!!!
Responda
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to measure how reactive a metal is.
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They are both used to show the MOUNTS OF PURE GOLD IN THE ALLOY. in both cases the higher the number the greater the proportion of gold.
Questão 15
Questão
(FINAL QUESTION)!!!!!!!!!!!!!!! in which process is iron used as a catalyst.
Responda
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Haber process
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Blast furnace
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Electrolysis
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