What are the two properties of carbon which lead to the huge number of carbon compounds we see around us? - Science


What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?

What are the two properties of carbon which lead to the formation of a large number of carbon compounds?



The two features of carbon that give rise to a large number of compounds are as follows:
→ Catenation – It is the ability to form bonds with other atoms of carbon.
→ Tetravalency – With the valency of four, carbon is capable of bonding with four other atoms.

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Chapter 4: Carbon And Its Compounds - Exercise 1 [Page 220]


Lakhmir Singh Class 10 Chemistry (Science)
Chapter 4 Carbon And Its Compounds
Exercise 1 | Q 2 | Page 220
NCERT Science Class 10
Chapter 4 Carbon and its Compounds
Intext Questions | Q 2 | Page 68

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Give any two differences between alkanes and alkenes.

‘A’ is an element having four electrons in its outermost orbit. An allotropes ‘B’ of this element is used as a dry lubricant in machinery and in pencil leads. So:
i. Write the name of element ‘A’ and its allotropes.
ii. State whether ‘B’ is a good conductor or non-conductor of electricity?

Define Saturated hydrocarbon.

Define Unsaturated hydrocarbon.

Define Catenation.

Draw the electron dot structures for H2S.

Write a short note on Catenation.

Fill in the following blank with suitable word:

Ethyne has ......... carbon-hydrogen single bonds.

Out of the following pairs of compounds, the unsaturated compounds are:
(a) C2H6 and C4H6
(b) C6H12 and C5H12
(c) C4H6 and C6H12
(d) C2H6 and C4H10

An unsaturated hydrocarbon having a triple covalent bond has 50 hydrogen atoms in its molecule. The number of carbon atoms in its molecule will be:
(a) 24
(b) 25
(c) 26
(d) 28

A mixture of ethyne (acetylene) and oxygen is burnt for welding. Can you tell why a mixture of ethyne and air is not used?

What is added to groundnut oil when it is to be converted to vanaspati ghee?

Which of the two is better for our health : butter or vegetable oil? Why?


Which of the following hydrocarbons can decolourise bromine water and which cannot? Why?
C6H12, C6H14, C6H10

 Differentiate between alkanes and alkenes. Name and draw the structure of one member of each. 

Fill in the blanks and rewrite the completed statements:

The organic compounds having double or triple bond in them are termed as _________________   _________________.

Explain the following reaction with balanced chemical equation:
Calcium reacts with water. 

Carbon, Group (14) element in the Periodic Table, is known to form compounds with many elements. Write an example of a compound formed with

  1. chlorine (Group 17 of Periodic Table)
  2. oxygen (Group 16 of Periodic Table)


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