हिंदी

______ is the essential element in all the organic compounds. - Science and Technology

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प्रश्न

______ is the essential element in all the organic compounds. 

विकल्प

  • single

  • all double

  • ionic

  • carbon

  • give and take

  • hydrogen

  • multiple

  • share

  • most

  • covalent

MCQ
रिक्त स्थान भरें
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उत्तर

Carbon is the essential element in all the organic compounds.

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अध्याय 13: Carbon: An important element - Exercise [पृष्ठ १४९]

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बालभारती Science and Technology [English] 9 Standard Maharashtra State Board
अध्याय 13 Carbon: An important element
Exercise | Q 1. d. | पृष्ठ १४९

संबंधित प्रश्न

In addition to some propane and ethane, LPG cylinders contain mainly two isomers of another alkane. Name the two isomers and write their condensed structural formulae.


Fill in the blank

...............is used in making black shoe polish.


Name the products formed when:

wood is burnt in the absence of air.


Give two uses for the following:

sugar charcoal


Match the colunm 

       column  A         column B
1. A product of incomplete burning  a. Hopcolite     
2. Nature of carben monoxide  b. Combustible gas 
3. A compound formed by the combination of haemoglobin and carbon monoxide  c. carboxy-haemoglobin
4. A mixture of metallic oxides  d. Carbon monoxide 
5. Carbon monoxide  e. Highly poisonous 

Tick the most appropriate answer.

Each molecule of Buckminster fulierene contains 60 atoms of carbon arranged as balls consisting of 12 pentagons and
a. 20 hexagons
b. 30 hexagons
c. 40 hexagons
d. 50 hexagons


FILL IN THE BLANK

.................... is the main gaseous compound of carbon.


What is the name of the famous diamond that was found in Wajrakarur in Andhra Pradesh ?


Write three chemical properties of carbon.


State two characteristic features of carbon which when put together give rise to a large number of carbon compounds.


What is hydrocarbon? Give its one example. 


Differentiate between the two branches of chemistry – organic chemistry & inorganic chemistry with suitable examples.


State how you would convert carbon dioxide to a metallic carbonate using a basic oxide e.g. sodium oxide. [Give a balanced equation]


Select the appropeiate option of the following statement:

The type of coal with the highest carbon conent.


Give a reason for the following:

Carbon monoxide and not carbon dioxide, is a highly poisonous gas.


Carbon exists in the atmosphere in the form of ______.


Carbon is one of the most important ______ elements.


Which of the following is highly toxic?


______ is the main constituent of coal. 


There is more abundance of carbon on the earth.


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