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Unsaturation in the organic compound can be tested by the help of 

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Important Questions on Carbon And Its Compounds

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10th CBSE
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Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 35
The reaction, 2C2H5OH+2Na→2C2H5ONa+H2 suggests that ethanol is 
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10th CBSE
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Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 36
Which compound gives effervescence with sodium metal but not with sodium bicarbonate? 
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10th CBSE
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Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 37
Among the following the one having longest chain is 
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10th CBSE
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Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 38

The IUPAC name of the compound 

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10th CBSE
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Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 39
An organic compound X with molecular formula C2H4O2, turns blue litmus red and gives brisk effervescence with sodium bicarbonate. Identify the compound. 
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10th CBSE
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Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 40
In C6H14, the number of possible isomers is 
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10th CBSE
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Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 41
Which of the following set of compounds have same molecular formula? 
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10th CBSE
IMPORTANT
Foundation Course Chemistry>Chapter 4 - Carbon And Its Compounds>EXERCISE>Q 42
Which of the following is an isomeric pair?