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Correct the following statements.For Exa...

Correct the following statements.For Example : "Chlorine is a bleaching agent'. Should read : "Moist chlorine is a bleaching agent'. Haematite is the chief ore of aluminium.

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Correct the following statements : For example : "Chlorine is a bleaching agent'. Should read : 'Moist chlorine is a bleaching agent'. Copper reacts with nitric acid to produce nitrogen dioxide.

Correct the following statements. For example : "Chlorine is a bleaching agent'. Should read : 'Moist chlorine is a bleaching agent'. Hydrochloric acid is prepared in the laboratory by passing hydrogen chloride directly through water.

Correct the following statement - Haematite is the chief ore of aluminium.

Chlorine acts as a bleaching agent only in the presence of

Mention the conditions in which the following statement are correct. Chlorine is a good bleaching agent.

Which of the following is treated with chlorine to obtain bleaching powder?

Which of the following can be used as bleaching agent :

Which of the following statements is correct with regard to biocontrol agents ?

(A) : Chlorine acts as a bleaching agent in the presence of moisture (R) : Chlorine forms hypochlorous acid in the presence of moisture.

Which of the following oxo acids of chlorine is the best oxidisinig agent?

ICSE-METALLURGY-QUESTIONS FROM PREVIOUS ICSE BOARD PAPERS
  1. Find the odd one out and explain your choice (note:valency is not a cr...

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  2. Find the odd one out and explain your choice (note:valency is not a cr...

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  3. Correct the following statements.For Example : "Chlorine is a bleachin...

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  4. The sketch below illustrates the refining of aluminium by Hoope's proc...

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  5. The sketch below illustrates the refining of aluminium by Hoope's proc...

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  6. The sketch below illustrates the refining of aluminium by Hoope's proc...

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  7. State the property of the metal being utilised in the following:

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  8. Which one of the following is not true of metals

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  9. Give the equations for the following conversions A to E

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  10. Name the main constituent metal in the following alloy : Duralumin

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  11. Name the main constituent metal in the following alloys : Brass

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  12. Name the main constituent metal in the following alloys : Stainless...

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  13. Choose from the following list of substances, as to what matches the d...

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  14. What would you observe in each of the following cases? When carbon m...

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  15. This metal is a liquid at room temperature.

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  16. Name a metal which is found abundantly in the earth's crust.

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  17. What is the difference between calcination and roasting?

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  18. Name the process used for the enrichment of sulphide ore.

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  19. Write the chemical formulae of one main ore of iron and aluminium .

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  20. Write the constituents of electrolyte for the extraction of aluminium.

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