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Earn 100

Mention any two drawbacks of nanomaterials.

Important Questions on Applied Chemistry

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Identify the wrong statement about nanomaterials:
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The size of nanoparticles is between 1 to _____ nm.
HARD

Explain the role of chemistry in different spheres of life.

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Which is true about nanomaterials?
MEDIUM
Which of the following substances is used to increase shelf life of food?
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List any two applications of nano chemistry.
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The use of _____ has brought about the Green Revolution in our country. (pesticides / fertilizers)
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The size of nano particles 
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Nano chemistry involves the study of the physical and chemical properties of materials at _____ and molecular levels.
MEDIUM
What are food preservatives? Name two important preservatives.
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Asthma patient use a mixture of gases for respiration.
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A chemical product used in household material is 

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Name five items of daily use, made with the help of chemistry.
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The size of particles in nanomaterials varies from 1 to _____ nm.
MEDIUM
Penicillin and Terramycin are used as _____ and medicines.
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The metallic nanoparticles can be used as very active _____ due to their high surface area.
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Which of the following is/are correct for nano chemistry?
HARD

Match the following

1. Housing a. is a branch of science.
2. Food b. destroys harmful insects.
3. Clothing c. increases the yield of crops.
4. Chemistry d. paints and varnishes.
5. Insecticide e. synthetic yarns.
6. Fertiliser f. butter and bread.