Question 1 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d28273b230584979baf.JPG' />
In the given figure, name the carbon compound.
Question 2 :
Detergents are generally sodium salts of sulphonic acids or ammonium salts with chlorides or bromides ions, etc. Is it correct ?
Question 5 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d21273b230584979ba7.JPG' />
In the above figure, identify the carbon compound.
Question 6 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d22273b230584979ba8.JPG' />
In the above figure, identify the carbon compound.
Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b19d22273b230584979ba8.JPG' />
In the above figure, identify the carbon compound.
Question 9 :
Would you be able to check if water is hard by using a detergent?
Question 12 :
As the molecular mass increases in any homologous series, a gradation in physical properties is seen. Is it TRUE OR FALSE?
Question 13 :
Why is the conversion of ethanol to ethanoic acid an oxidation reaction?
Question 14 :
With concentrated sulphuric acid, ethanol reduces to ethene and water. Is it TRUE OR FALSE ?
Question 15 :
What are the number of valence electrons in the outer shell of carbon in uncombined state?
Question 16 :
Ethanol and ethanoic acid are carbon compounds of importance in our daily lives. Is it TRUE OR FALSE?
Question 23 :
Carbon is tetravalent because it has four valence electrons. Is it correct ?
Question 24 :
Saturated hydrocarbons give a sooty flame in absence of air. Is it TRUE OR FALSE?
Question 25 :
Most of the fuels we use are either carbon or its compounds. Is the statement correct ?