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Chemistry · Textbook solutions

Green Chemistry and Nanochemistry

Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. Plus every board question asked from this chapter. · 24 questions

Exercise

24 q

1. Choose the most correct option.

Practice · 5
  1. Choose the most correct option.
    Ex Q.1 (i)
    The development that meets the needs of present without compromising the ability of future generations to meet their own need is known as

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  2. Ex Q.1 (ii)
    Which of the following is Υ\Upsilon-isomer of BHC?

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  3. Ex Q.1 (iii)
    The prefix 'nano' comes from

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  4. Ex Q.1 (iv)
    Which of the following information is given by FTIR technique ?

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  5. Ex Q.1 (v)
    The concept of green chemistry was coined by

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2. Answer the following

Practice · 6
  1. Answer the following
    Ex Q.2 (i)
    Write the formula to calculate % atom economy.
  2. Ex Q.2 (ii)
    Name the Υ\Upsilon-isomer of BHC.
  3. Ex Q.2 (iii)
    Ridhima wants to detect structure of surface of materials. Name the technique she has to use.
  4. Ex Q.2 (iv)
    Which nanomaterial is used for tyres of car to increase the life of tyres ?
  5. Ex Q.2 (v)
    Name the scientist who discovered scanning tunneling microscope (STM) in 1980.
  6. Ex Q.2 (vi)
    1 nm = .....m ?

3. Answer the following

Practice · 8
  1. Answer the following
    Ex Q.3 (i)
    Define (i) Green chemistry (ii) sustainable development.
  2. Ex Q.3 (ii)
    Explain the role of green chemistry.
  3. Ex Q.3 (iii)
    Give the full form (long form) of the names for following instruments. a. XRD b. TEM. c. STM d. FTIR e. SEM
  4. Ex Q.3 (iv)
    Define the following terms : a. Nanoscience b. Nanotechnology c. Nanomaterial d. Nanochemistry
  5. Ex Q.3 (v)
    How nanotechnology plays an important role in water purification techniques?
  6. Ex Q.3 (vi)
    Which nanomaterial is used in sunscreen lotion ? Write its use.
  7. Ex Q.3 (vii)
    How will you illustrate the use of safer solvent and auxiliaries ?
  8. Ex Q.3 (viii)
    Define catalyst. Give two examples.

4. Answer the following

Practice · 5
  1. Answer the following
    Ex Q.4 (i)
    Explain any three principles of green chemistry.
  2. Ex Q.4 (ii)
    Explain atom economy with suitable example.
  3. Ex Q.4 (iii)
    How will you illustrate the principle, minimization of steps ?
  4. Ex Q.4 (iv)
    What do you mean by sol and gel? Describe the sol-gel method of preparation for nanoparticles.
  5. Ex Q.4 (v)
    Which flower is an example of self cleaning ?