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Four students A,B,C and D were asked by ...

Four students A,B,C and D were asked by their teacher to arrange the set up I to IV as given below and identify the gas, if any evolved in each case:

After observations the students arrived at the inferences recorded in the following table:

The correct observations and inferences have been reported by the student:

A

A

B

B

C

C

D

D

Text Solution

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The correct Answer is:
B
NA
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LAKHMIR SINGH & MANJIT KAUR-PERIODIC CLASSIFICATION OF ELEMENTS-Exercise
  1. A student took four test tubes I,II,III and IV containing aluminium su...

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  2. 2mL of ethanoic acid was taken in each of test tube I and test tube II...

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  3. Four students A,B,C and D were asked by their teacher to arrange the s...

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  4. On adding a few drops of universal indicator solution to three unknown...

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  5. A few drops of ethanoic acid were added to solid sodium carbonate. The...

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  6. Did Döbereiner’s triads also exist in the columns of Newlands’ Octaves...

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  7. What were the limitations of Döbereiner’s classification?

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  8. What were the limitations of Newlands’ Law of Octaves?

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  9. Use Mendeléev’s Periodic Table to predict the formulae for the oxides ...

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  10. Besides gallium, which other elements have since been discovered that ...

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  11. What were the criteria used by Mendeléev in creating his Periodic Tabl...

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  12. Why do you think the noble gases are placed in a separate group?

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  13. How could the Modern Periodic Table remove various anomalies of Mendel...

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  14. Name two elements you would expect to show chemical reactions similar ...

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  15. Name (a) three elements that have a single electron in their outermo...

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  16. (a) Lithium, sodium, potassium are all metals that react with water to...

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  17. In the Modern Periodic Table, which are the metals among the first ten...

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  18. By considering their position in the Periodic Table, which one of the ...

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  19. Which of the following statements is not a correct statement about the...

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  20. Element X forms a chloride with the formula XCl(2), which is a solid w...

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