Question
Explain the structure of carbon nanotubes.
✓
Answer
- Carbon nanotubes are cylindrical in shape consisting of rolled-up graphite sheet.
- Nanotubes can be single-walled (SWNTs) with a diameter of less than 1 nm or multi-walled (MWNTs) with diameter reaching more than 100 nm.
- Their lengths range from several micrometres to millimetres.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Write the structural formula of following derivatives of benzene.
i. 2,4,6-Trinitrotoluene
ii. 1-Chloro-2,4-dinitrobenzene
iii. 4-Broniobenzaldehyde
iv. 1-Iodo-3-phenylpentane
v. 2-Hydroxybenzaldehyde
i. 2,4,6-Trinitrotoluene
ii. 1-Chloro-2,4-dinitrobenzene
iii. 4-Broniobenzaldehyde
iv. 1-Iodo-3-phenylpentane
v. 2-Hydroxybenzaldehyde
Explain the term emulsions and types of emulsions.
Arrange the following alkenes in increasing order of their boiling points.
But-1-ene, 2,3-dimethylbut-2-ene, 2-methylpropene, propene, 2-methylbut-2-ene.
But-1-ene, 2,3-dimethylbut-2-ene, 2-methylpropene, propene, 2-methylbut-2-ene.
Draw a neat and labelled diagram of Daniel cell.
Benzene cannot have open chain structure. Explain this statement.
Write the chemical equations for reaction, if any, of $(i) Na_2O$ and $(ii) Al_2O_3$ with $HCl$ and $NaOH$ both. Correlate this with the position of $Na$ and $Al$ in the periodic table, and infer whether the oxides are basic, acidic or amphoteric.
→What are the different types of electrophilic substitution reactions of benzene?
What is an ideal gas?
Complete The Chart :
Assign oxidation number to each atom in the following species.
a. $Cr(OH)_4^–$
b. $Na_2S_2O_3$
c. $H_3BO_3$
→a. $Cr(OH)_4^–$
b. $Na_2S_2O_3$
c. $H_3BO_3$