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HSC Science (Computer Science) 12th Standard Board Exam - Maharashtra State Board Important Questions for Chemistry

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Chemistry
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Define atom economy.

Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Principles of Green Chemistry

Complete and write the following table

Reaction Name of catalyst
i) Manufacture of HDPE polymer ________________
ii) _______________ V2O5
Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Characteristic Features of Nanoparticles

State disadvantages of nanoparticles and nanotechnology.

Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Nanoparticles and Nanotechnology

The name of metal nanoparticle which acts as highly effective bacterial disinfectant in water purification process is ______.

Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Applications of Nanomaterials

Write two disadvantages of nanotechnology.

Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Nanoparticles and Nanotechnology

Write the name of the technique used to know geometry of nanoparticles.

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Chapter: [16] Green Chemistry and Nanochemistry
Concept: Synthesis of Nanomaterials

Explain any two applications of nanomaterials.

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Chapter: [16] Green Chemistry and Nanochemistry
Concept: Applications of Nanomaterials

Write the name of metal nanoparticle used to remove E.coli bacteria from water.

Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Applications of Nanomaterials

What is nano material? 

Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Synthesis of Nanomaterials

Write the reaction involved in sol-gel process during hydrolysis.

Appears in 1 question paper
Chapter: [16] Green Chemistry and Nanochemistry
Concept: Synthesis of Nanomaterials

Classify the following drugs into Analgesics and Antibiotics 

(1) Ofloxacin

(2) Morphine

(3) Ampicillin

(4) Chloramphenicol

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Chapter: [16.01] Chemicals in Medicines
Concept: Chemicals in Medicines >> Tranquilizers and Analgesics

An antifertility drug is -

(a) Novestrol

(b) Histamine

(c) Vernal

(d) Equanil

Appears in 1 question paper
Chapter: [16.01] Chemicals in Medicines
Concept: Chemicals in Medicines >> Antipyretic, Antimalarial and Antifertility

Draw the structures of chloroxylenol.

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Chapter: [16.01] Chemicals in Medicines
Concept: Chemicals in Medicines >> Antiseptic and Disinfectants

What are antacids? 

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Chapter: [16.01] Chemicals in Medicines
Concept: Chemicals in Medicines >> Antacids

Draw structure of BHT.

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Chapter: [16.02] Chemicals in Food
Concept: Chemicals in Food - Artificial Sweetening Agents and Food Preservatives

Write ‘four’ physical methods of preserving food materials

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Chapter: [16.02] Chemicals in Food
Concept: Chemicals in Food - Artificial Sweetening Agents and Food Preservatives
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