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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
Choose the correct answer from the options given below:
Aluminum powder is used in thermite welding because
A. It is a strong reducing agent
B. It is a strong oxidizing agent
C. It is corrosion resistant
D. It is a good conductor of heat
Which process is applied to concentrate ore of zinc?
State the position of aluminium in the periodic table.
Which impurities are present in bauxite?
Why ‘the food containing iron salts’ should not be cooked in aluminium utensils?
Name an alloy of aluminium used in aircraft construction.
Complete the statement using every given option.
During the extraction of aluminium..............
Chemical reaction of transformation of bauxite into alumina by Hall’s process.
Give composition and uses of the following alloys. Mention the reason for its use.
Stainless steel
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:
- Zinc
- Aluminium
Explain concept with example/explain with the help of a balanced equation.
Ores
