No.	Question	Options
1	Hazardous effects of shopping bags are studied in:	A. Geochemistry B. Inorganic Chemistry C. Analytical Chemistry D. Environmental Chemistry
2	The man-made polymer is:	A. Starch B. Polystyrene C. Protein D. Cellulose
3	Example of Natural Polymer is:	A. Proteins B. Cellulose C. Nucleic Acids D. All of these
4	Study of molecules and ions in space is called:	A. Geochemistry B. Astro Chemistry C. Organic Chemistry D. Pyro Chemistry
5	Branch dealing with radioactivity is:	A. Applied Chemistry B. Environmental Chemistry C. Physical Chemistry D. Nuclear Chemistry
6	Elements are represented by:	A. Symbols B. Formula C. Molecular Formula D. None of these
7	Formula of sodium carbonate is:	A. NaOH B. NaHCO₃ C. Na₂CO₃ D. Na₂CO
8	Symbol of silver is:	A. Hg B. Ag C. Cu D. Au
9	Particles passing through filter paper:	A. Solution B. Colloid C. Suspension D. None of these
10	Which one is colloid?	A. Jelly B. Paints C. Milk of magnesia D. Wood

No.	Question	Answer Space
i	Why is there a need to divide Chemistry into many branches? Give three reasons.
ii	Most molecules in biochemistry are organic. What’s the difference between organic and biochemistry?
iii	Differentiate between environmental and analytical chemistry.
iv	Define compound. Give example.
v	What is mixture? Can we separate a mixture?
vi	Difference between homogeneous and heterogeneous mixtures.
vii	Write symbols of gold and silver.
viii	Name two elements that exist in liquid state.
ix	First element created in laboratory?
x	Write two properties of compounds.
xi	Which groups of elements exist as monoatomic?
xii	How are mixtures helpful in daily life?
xiii	Define true solution. Give example.
xiv	Give two examples of suspension.
xv	What is saturated solution? How to prepare it?