Advertisements
Advertisements
प्रश्न
Which metal can be extracted from the following ore?
Calamine
उत्तर
Zinc
APPEARS IN
संबंधित प्रश्न
A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a particular solution. The bangles sparkled like new but their weight was reduced drastically. The lady was upset, but after a futile argument, the man beat a hasty retreat. Can you play the detective to find out the nature of the solution he had used?
In the extraction of aluminium Write the cathode reaction in electrolytic reduction of alumina.
A zinc ore gave CO2 on treatment with a dilute acid. Identify the ore and write its chemical formula.
Why are the metals like Na, K, Ca and Mg never found in their free state in nature?
How is zinc extracted from its carbonate or (calamine)? Explain with equations.
How is aluminium metal extracted? Explain with the help of an equation.
Rock salt is an ore of one of the following metals. This metal is:
(a) Mn
(b) Na
(c) Fe
(d) Cu
Name the following:
The process in which an ore is heated in air so that oxygen gets added to it to form the oxides.
Explain the characteristics of ionic compounds.
Explain the following reaction with the balanced equation.
Ferric oxide is reacted with aluminium.
