Self Studies
Self Studies
Self Studies
Self Studies

Environmental Chemistry Test - 37

Result Self Studies

Environmental Chemistry Test - 37
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    A raw material feedstock should be renewable rather than depleting, whenever technically and ecomonically practical, is an objective of:
    Solution
    Green chemistry seeks to develop products and processes that are kind to the environment. This can involve reducing the waste a process creates, using renewable materials, lessening the energy required to form a product, etc.
    The given process is promoting renewable use of raw materials, hence, it is an objective of Green chemistry.
  • Question 2
    1 / -0
    Which of the following products have green chemistry approach?
    Solution
    Surfactants are made which are readily biodegradable, and in some cases are manufactured from renewable plant-derived resources such as carbohydrates (sucrose, glucose) or plant oils.

    Propene is being produced by a variety of ways from materials produced in turn from biodegradable resources,  The propene is used to manufacture polypropene.

    The current commercial method for producing ibuprofen has just three steps and minimal waste.

    Hence, all are applications of green chemistry.

    The correct option is D.
  • Question 3
    1 / -0
    Taking chromium and arsenic, which are toxic, out of pressure-treated wood, and using new less toxic chemicals for bleaching paper, are examples of _________.
    Solution
    Green chemistry seeks to develop products and processes that are kind to the environment. This can involve reducing the waste a process creates, using renewable materials, lessening the energy required to form a product, etc.
    Both the processes in the question involves forming products which are more friendly towards the environment. Hence, they are the applications of Green chemistry.
  • Question 4
    1 / -0
    Solvents used to dry clean clothes are usually $$C_2Cl_4$$ .A substitute has been discovered which is environmental friendly is an application of __________.
    Solution
    Solvents used to clean dry clothes are usually chlorinated compounds such as tetrachloroethylene $$C_2Cl_4$$ which is a human potential carcinogen which have serious environmental consequence. a substitute has been discovered which is environmental friendly is an application of green chemistry.
  • Question 5
    1 / -0
    Switching from air to pure oxygen eliminates the NO production. This is an application of:
    Solution
    Switching from air to pure oxygen eliminates NO production and also saves fuels by more efficient burning, thus, having less wastage. Hence, this is an application of Green chemistry.
  • Question 6
    1 / -0
    Plastic used to preserve yogurts is replaced with a polymer called polylactic acid is an example of _______.
    Solution
    Since usage of petroleum-based plastic is harmful to the environment, a polymer called polylactic acid, made using micro-organisms to convert cornstarch into a resin, is used to preserve yogurt. The resulting polymer is used to replace rigid petroleum-based plastic used in yogurt containers and water bottles and is environment-friendly. It is an application of green chemistry
  • Question 7
    1 / -0
    The current synthesis of poly-carbonate is an application of:
    Solution
    The family of polycarbonates contains very important polymers which are used where high optical properties combined with strength are needed. The polycarbonate is manufactured by a condensation reaction between bisphenol A and either carbonyl chloride or diphenyl carbonate. Carbonyl chloride is a very poisonous gas.
    On the other hand, diphenyl carbonate is produced from dimethyl carbonate, which is readily manufactured from methanol, carbon monoxide and oxygen in the liquid phase, in presence of copper(II) chloride, $$Cu{Cl}_2$$.
    An alternate method is discovered which is more friendly to the environment, is an application of green chemistry.
  • Question 8
    1 / -0
    Biomass is used instead of extensive use of petroleum. This is an application of :
    Solution
    Use of petroleum creates lots of gases which are harmful to the environment. 

    In order to decrease human consumption of petroleum, chemists have investigated methods for producing polymers from renewable resources such as biomass. 

    NatureWorks polylactic acid (PLA) is a polymer of naturally occurring lactic acid (LA), which on consumption creates no waste and hence, is an environment-friendly compound.

    It is an application of Green chemistry.

    Hence the correct option is C.
  • Question 9
    1 / -0
    ________ reduces toxicity, minimizes waste, saves energy, and cuts down on the depletion of natural resources. It allows for advances in chemistry to occur in a much more environmentally benign way.
    Solution
    Green chemistry seeks to develop products and processes that are kind to the environment. This can involve reducing the waste a process creates, using renewable materials, lessening the energy required to form a product, etc. 
  • Question 10
    1 / -0
    Faraday has developed a plating process to make high-performance chrome coatings from trivalent chromium instead of highly toxic hexavalent chromium. This is an application of:
    Solution
    Faraday has developed a plating process to make high-performance chrome coatings from trivalent chromium instead of highly toxic hexavalent chromium. It involves the production of alternate product which is more friendly to environment. Hence, this is an application of Green chemistry.
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now