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Chemistry Important Question Bank 2018
- Distinguish between crystalline solid and amorphous solid.
- What is pseudo first order reaction? Give an example for the same.
- Write cell reactions in lead storage battery during discharge.
- Mention names and formulae of two ores of aluminum.
- What is calcination? Explain it with reactions.
- Draw neat and labelled diagram of dry cell.
- Explain impurity defect in stainless steel with diagram.
- Explain the structure of Sulphur dioxide.
- What is Enthalpy of fusion and Enthalpy of atomization?
- What is ferromagnetism? Iron is strongly ferromagnetic. Explain.
- Explain graphical method to determine activation energy of a reaction.
- Define boiling point. Write the formula to determine molar mass of a solute using freezing point depression method.
- What are Ellingham diagrams? Write the features of it.
- Explain the relationship between Gibb’s standard energy change of the reaction and equilibrium constant.
- Write the Nernst equation and explain the terms involved.
- Calculate the mole fraction and molality of HNO3 in a solution containing 12.2% HNO3.
- What is the action of excess of air on ammonia?
- Define osmosis.
- Explain how does nitrogen exhibit anomalous behavior amongst group 15 elements.
- Sucrose decomposes in acid solution into glucose and fructose according to the first order rate law t1/2 is equal to 3 hours. What fraction of the sample of sucrose remains after 8 hours?
- Define cell constant. Draw a neat and well labelled diagram of primary reference electrode.
- Write the reactions involved in large scale preparation of Nitric Acid.
- State the third law of thermodynamics. Write applications of standard molar entropy. Also, draw neat labelled diagram of electrolytic refining of blister copper.
- Write four points of differences between properties of nitrogen and other elements of group 15.
- What are neutral oxides? Explain the nature of zinc oxide with the help of the reactions.
- How is ethanol prepared from methanol by using Grignard reagent?
- Write the chemical reaction to prepare novolac polymer.
- Why does p-nitrochlotobenzene undergo displacement reactions readily with attack of nucleophilic HO ion
- Define antioxidants and mention two examples.
- Write in the structure and IUPAC name of ‘methyl-n-propyl ether’
- What are hormones? Write the structure of simple triglycerides.
- Define complex lipids and write the structures of nucleotide and nucleoside.
- How is 4-methylpent-3-en-2 one obtained from propan-2-one?
- Explain the mechanism of cleansing action of soaps.
- Explain any two chemical methods of food preservation.
- Write a short note on Hoffmann bromamide degradation.
- Write the different oxidation states of manganese. Why +2 oxidation state of manganese is more stable
- Explain with examples, branched and linear polymers.
- Write a note on Friedel Craft’s acylation.
- What are antibiotics? Give examples.
- How are proteins classified on the basis of molecular shapes?
- Write a note on Gabriel phthalimide synthesis. What are biodegradable polymers and non-biodegradable polymers?
- Define lanthanoid contraction. Explain its effects.
- Define carbohydrates. What are reducing and non-reducing sugars?
- How is ethyl amine prepared from methyl iodide?
- Define ligand. Write four postulates of potassium dichromate from chrome iron ore.
- What is metamerism?
- What are the sources of Vitamin C and Vitamin K?
- Explain any two chemical methods of food preservation.
- Write four points of distinction between Lanthanoids and Actinoids.
- How is Benzonitrile converted to Benzophenone?
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Maharashtra HSC Board Exam – Important Question Bank 2018
- Physics
- Chemistry
- Biology
- Mathematics & Statistics
- English
- Economics
- Bookkeeping & Accountancy
- Organisation of Commerce
- Secretarial Practice
- History
- Psychology