मराठी

Fill in the Blank with Appropriate Word/Words. for Artificial Ripening of Fruits _________Is Used

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प्रश्न

Fill in the blank with appropriate word/words.

For artificial ripening of fruits _________is used.

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उत्तर

 For artificial ripening of fruits, ethylene is used.

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पाठ 17: Carboxylic Acids - Exercises [पृष्ठ २९१]

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फ्रँक Chemistry Part 2 [English] Class 10 ICSE
पाठ 17 Carboxylic Acids
Exercises | Q 3. (d) | पृष्ठ २९१

संबंधित प्रश्‍न

Draw the structural formula for the acetone compound. What compound is used to describe this compound taken together?


Why does ethene undergo addition reactions?


Fill in the blanks by chosing words from the given list of words:

Addition, Carbohydrates, CnH2n-2, CnH2n+2, electrochemical, homologus, hydrocarbons, saturated, substitution, unsaturated.

The alkanes form a ______series with general formula_________The alkanes are_______,which generally undergo________reactions.


The list of some organic compounds is given below:

ethanol, ethane, methane, ethyne, and ethene

From the above list, name a compound:

  1. formed by the dehydration of ethanol by concentrated sulphuric acid.
  2. which forms methanoic acid on oxidation in the presence of copper at 200°C.
  3. which has vapour density 14 and turns acidic potassium permanganate colourless.
  4. which forms chloroform on halogenation in the presence of sunlight.
  5. which decolourises bromine solution in carbon tetrachloride.

Compound A is bubbled through bromine dissolved in carbon tetrachloride and the product is CH2Br - CH2Br.
\[\ce{A ->[Br2/Od4] CH2Br - CH2Br}\]

Name (not formula) the compound formed when steam reacts with A in the presence of phosphoric acid.


Write a balanced chemical equation for the following:

Burning of ethane in plentiful supply for air.


Name the compound prepared by the following reaction:

\[\ce{C2H5Br + KOH (alcoholic solution) ->}\]


Define isomerism.


Name the gases which extinguishes burning wooden splinters.


The structures of six organic compounds are shown:

A

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H - C - C = C - C - H}\\
|\phantom{.............}|\\
\ce{H}\phantom{............}\ce{H}
\end{array}\]

B

\[\begin{array}{cc}
\phantom{.......}\ce{H}\phantom{.....}\ce{O}\\
\phantom{.......}|\phantom{.....}//\\
\ce{H - C - C}\\
\phantom{......}|\phantom{.....}\backslash\\
\phantom{...........}\ce{H}\phantom{.....}\ce{O - H}
\end{array}\]

C

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}
\end{array}\]

D

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{H}\phantom{...}\ce{O}\\
\phantom{.......}\backslash\\
\phantom{.........}\ce{H}
\end{array}\]

E

\[\begin{array}{cc}
\ce{H}\\
|\\
\ce{H - C - H}\\
\ce{H}\phantom{....}\phantom{....}\ce{H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}
\end{array}\]

F

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\\
\ce{C = C}\\
|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}
\end{array}\]

  1. Identify two of the compounds that are members of the same homologous series but are not isomers.
  2. Which two compounds are isomers of each other?
  3. F can be prepared from D. Give a chemical equation for the reaction.

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