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प्रश्न
From the metals: copper, iron, magnesium, sodium, and zinc, select a different metal in the case which does not react with dilute hydrochloric acid.
उत्तर
Copper
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संबंधित प्रश्न
What is rust? Give the equation for the formation of rust ?
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forth floatation process
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cast iron
State the use of:
hard steel
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Name the following:
Two metals which occur in nature in free state as well as in combined state.
Name one metal occurring as a : Sulphide ore
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A to F below relate to the source and extraction of either zinc or aluminium.
- Bauxite
- Coke
- Cryolite
- Froth floatation
- Sodium hydroxide solution
- Zinc blende
Write down the three letters each from the above list which are relevant to:
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- Aluminium
Write the chemical formulae of the main ore of aluminium.
