Advertisements
Advertisements
प्रश्न
Name the ore of zinc containing its sulphide.
उत्तर
Zinc blende (ZnS)
APPEARS IN
संबंधित प्रश्न
Select the process from the following which matches the given description.
(calcination, roasting, pulverisation, smelting)
Heating of the ore in the absence of air to a high temperature.
How does the painting of an iron object prevent rusting?
Name the following:
The rocky impurities present in an ore.
Complete and balance the following equation:
Fe2O3 + → Al2O3 +
Complete and balance the following equation:
Fe2O3 + CO →
From the metals copper, iron, magnesium, sodium and zinc, select a different metal in each case which:
(a) Does not react with dilute hydrochloric acid
(b) Can form 2+ and 3+ ions
(c) Has a hydroxide that reacts with both acid and alkalis.
(d) Does not react with cold water, but reacts with steam when heated.
Find the odd one out of the following and explain your choice : Copper, Lead, Zinc, Mercury
The two main metals in bronze are
Name : The processes involved in Refining of ores
Explain concept with example/explain with the help of a balanced equation.
Ores