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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
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उत्तर
Carbon is the essential element in all the organic compounds.
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संबंधित प्रश्न
Name the element whose allotropic form is graphite.
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.
Write true or false
Carbon constitues 0.03% of the earth’s crust.
Name the products formed when:
wood is burnt in the absence of air.
Explain the term ‘green house effect’. How can it be both beneficial and harmful for life on earth ?
Tick the most appropriate answer.
Carbon has a great affinity for
a. sulphur
b. nitrogen
c. oxygen
d. none of these
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Write the name and the chemical formula of the simplest alkene.
Name of the following compounds :
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[Give balanced equations for the same]
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[Give balanced equations for the same]
Select the appropeiate option of the following statement:
An allotrope of carbon obtained by burning kerosene oil in a limited supply of air.
Select the appropeiate option of the following statement:
A nitrogenous fertilizer obtained from carbon dioxide.
Complete the statement by filling the blank with the correct word from the option.
Adsorption capacity of wood charcoal is increased by passing ______ over wood charcoal, at high temperature.
Complete the statement by filling the blank with the correct word from the option.
Sodium oxide combines with carbon dioxide to give _____
The property of self-linkage among identical atoms to form long chain compounds is known as ______.
The main component of water gas is ______.
Which theory was challenged by the synthetic preparation of Urea?
Why is carbon monoxide harmful to health? (or) What happens when we breathe Carbon monoxide?
