Tag: production of metals
Questions Related to production of metals
For alkali metals, only electrolytic reduction is employed.
Match the following.
Separation process | Purpose for which we do the separation | What do we do with the separated components |
---|---|---|
1) Separate stones from rice | a) To remove non useful components | i) We throw away the impurities |
2) Churning milk to obtain butter | b) To remove impurities or harmful components | ii) we throw away the solid component |
3) Separate tea leaves | c) to separate two different but useful components. | iii) we use both the components. |
Which of the following represents correct statement(s)?
Handpicking is used for separating tiny impurities.
Which of the following represents incorrect statement(s)?
Which of the following represents correct statement(s)?
Sieves are used at construction sites to separate pebbles and stones from sand.
Nickel metal is purified by the vapour phase refining process. This process is based on the fact that:
Group II. A elements are extracted from their chlorides by..........reduction.
Which of the following statements is/are correct regarding metallurgy?