मराठी
महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (मराठी सेमी-इंग्रजी) इयत्ता ९ वी

______ is the essential element in all the organic compounds.

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प्रश्न

______ is the essential element in all the organic compounds. 

पर्याय

  • single

  • all double

  • ionic

  • carbon

  • give and take

  • hydrogen

  • multiple

  • share

  • most

  • covalent

MCQ
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उत्तर

Carbon is the essential element in all the organic compounds.

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

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

संबंधित प्रश्‍न

Name the scientist who disproved the ‘vital force theory’ for the formation of organic compounds.


Fill in the blank.

The name ‘carbon’ is derived from the Latin word...........


Choose the correct alternative

Lamp black is


How many carbon atoms are there in Buckminster fullerenes?


 How will you collect the gas ?


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


Define catenation.


Explain the ways in which glucose is broken down in absence or shortage of oxygen. 


A carbon atom forms a ______ bond with other atoms. In this bond the two atoms ______ electrons.

(single, all, double, ionic, carbon, give and take, hydrogen, multiple, share, most, covalent)


Answer the following question.
Name the type of bonds formed in the methane compound.


How would you prove experimentally that carbon dioxide does not support combustion.


Starting from carbon dioxide how would you obtain a black particles of carbon.
[Give balanced equations for the same]


Explain the term ‘dry ice’. State its application.


Select the appropeiate option of the following statement:

A nitrogenous fertilizer obtained from carbon dioxide.


Give a balanced equation for the following conversion: [In one or two steps]

Calcium bicarbonate to calcium nitrate using a dilute acid.


Complete the statement by filling the blank with the correct word from the option.

______ Chemistry is the Chemistry of carbon compounds mainly of ‘Carbon’, ‘Hydrogen’ & ‘Oxygen’.


Fossil fuels are obtained from


Carbon monoxide displaces ______ from hemoglobin. 


According to the Octet rule, carbon requires ______ electrons to attain the nearest noble gas.


There is more abundance of carbon on the earth.


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