Important Question Bank of Chemistry for Maharashtra HSC Board Exam 2019

1.      Define cell constant. Draw a neat and well labelled diagram of primary reference electrode.
2.      Define complex lipids and write the structures of nucleotide and nucleoside.
3.      Define lanthanide contraction. Explain its effects.
4.      Define three moduli of elasticity. State their formulae.
5.      Describe how an artificial satellite is launched in an orbit around the earth. Explain the nature of all the possible orbits of a satellite with the help of a suitable diagram.
6.      Distinguish between crystalline solid and amorphous solid.
7.      Draw structures of (A) chlorine trifluoride (B) chlorine pentafluoride.
8.      Explain graphical method to determine activation energy of a reaction.
9.      Explain the mechanism of cleansing action of soaps.
10.    Mention ‘two’ uses of propan-2-one.
11.    State Kirchhoff’s law of radiation and prove it theoretically.
12.    State any ‘six’ assumptions on which the kinetic theory of glass is based.
13.    State the first and second law of electrolysis.
14.    What are Ellingham diagrams? Write the features of it.
15.    What are antibiotics? Give examples.
16.    What are hormones? Write the structure of simple triglycerides.
17.    What are neutral oxides? Explain the nature of zinc oxide with the help of the reactions.
18.    What is Enthalpy of fusion and Enthalpy of atomization?
19.    What is Enthalpy of fusion and Enthalpy of atomization?
20.    What is ferromagnetism? Iron is strongly ferromagnetic. Explain.
21.    What is pseudo first order reaction? Give an example for the same.
22.    What is the effect of temperature on solubility of a gas in a liquid?
23.    Which specific heat of a gas is greater? Why?
24.    Write a note on Friedel Crafts acylation.
25.    Write a note on Gabriel phthalimide synthesis. What are biodegradable polymers and non biodegradable polymers?
26.    Write a short note on Hoffmann bromamide degradation.
27.    Write a short note on electro-metallurgy.
28.    Write a short note on froth floatation.