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Carbon and its ...

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  • Question 1
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    How many elements of unsaturation does a molecule with the chemical formula $$C_5H_8$$ have?

  • Question 2
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    Directions For Questions

    An organic compound $$X$$ is widely used as a preservative in pickles and has a molecular formula $$C_2H_4O_2$$. This compound reacts with ethanol to form a sweet smelling compound $$Y$$.

    ...view full instructions

    Which gas is produced when compound $$X$$ reacts with washing soda?

  • Question 3
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    An organic compound 'A' produces a gas with brisk effervescence when sodium bicarbonate is added to it. The compound 'A' contains the same number of carbons as in ethane. The compound 'A' reacts with ethanol to form a sweet-smelling compound 'C' in presence of conc. $$H_2SO_4$$ acid. Then the name of compound A and the gas evolved is :

  • Question 4
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    Which of the following statement(s) is/are correct?

    (1) Graphite is used in making electrodes because it can conduct electricity.
    (2) Graphite is used as a solid lubricant.
    (3) Graphite is used in the manufacture of crucibles.
    (4) Graphite is also known as the black lead.

  • Question 5
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    Assertion: When a hydrocarbon is combusted in air, carbon monoxide is always the major product.
    Reason: Air contains much more nitrogen than oxygen.

  • Question 6
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    An organic compound 'A' produces a gas with brisk effervescence when sodium bicarbonate is added to it. The compound 'A' contains same number of carbons as in ethane. The compound 'A' reacts with ethanol to form a sweet smelling compound 'C' in presence of conc. $$H_2SO_4$$. A and C respectively are :

  • Question 7
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    Name the process for ethanol to ethene conversion and reactants used.

  • Question 8
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    Which of the following is pair of homologues?

  • Question 9
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    Heats of combustion of $$CH_4, C_2H_4, C_2H_6 $$ are -890, -1411 and -1560 KJ/mole respectively. Which has the lowest fuel value in KJ/g?

  • Question 10
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    The number of carbon compounds is very large because:

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