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State one observation for the following:...

State one observation for the following: Bromine vapours are passed into a solution of ethyne in carbon tetrachloride.

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When bromine vapours are passed into a solution of ethyne in Carbon tetrachloride, the brown colour of bromine.
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ICSE-SAMPLE QUESTION PAPER 03-SECTION II
  1. State one observation for the following: Bromine vapours are passed in...

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  2. The following question relate to the extraction of aluminium by electr...

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  3. The following question relate to the extraction of aluminium by electr...

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  4. The following question relate to the extraction of aluminium by electr...

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  5. The following question is related to Iron: Name the acid with which ...

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  6. The following question are related to Iron: Name an alloy of iron an...

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  7. The following question are related to Iron: Name the process by whic...

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  8. Complete the following statements using proper words: In a thermit...

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  9. Complete the following statements using proper words: In dry cells,...

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  10. Use the letters only written in the Periodic Table given below to ans...

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  11. Use the letters only written in the Periodic Table given below to ans...

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  12. Use the letters only written in the Periodic Table given below to ans...

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  13. Use the letters only written in the Periodic Table given below to ans...

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  14. Arrange the following as per the instructions given in the brackets: ...

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  15. Arrange the following as per the instructions given in the brackets: ...

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  16. Arrange the following as per the instructions given in the brackets :...

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  17. Arrange the following as per instructions given in the brackets: Cl,...

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  18. By drawing an electron dot diagram, show the lone pair effect leading...

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  19. Identify the acid which matches the following description : Give bal...

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  20. Name a yellow monoxide that dissolves in hot and concentrated alkali. ...

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  21. Study the figure given below and answer the questions that follow : ...

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