Available Answers

1. 1.

   Write one example for the following by selecting from the options.

   

   1. Metal: _____________
   2. Non-metal : __________
   3. Metalloid : ____________
   4. Noble gas : ___________
   5. Inorganic compound : ____________
   6. organic compound : _____________
   7. Homogeneous mixture : ___________
   8. Heterogeneous mixture : ____________
2. 2.

   Try to name the following elements by looking at the pictures.

   

3. 3.

   Give one word for the following:

   1. A metal which is poor conductor of electricity.
   2. A metal which is neither malleable nor ductile.
   3. A soft metal which can be cut with a knife.
   4. A non-metal which is liquid at room temperature.
   5. Substances combined chemically.
4. 4.

   Fill in the blanks:

   1. _______________ is the smallest particle of a pure substance which can exist freely.
   2. Constituents of compounds cannot be separated by ____________ means.
   3. ___________ are sonorous.
   4. ___________ and __________ are liquid metals.
   5. ____________ a non-metal is a good conductor of electricity.
5. 5.

   Give two examples for the following:

   1. Metals _________, ___________
   2. Non-metals ___________, __________
   3. Metalloids ____________, ___________
   4. Inert gases __________, ___________.
6. 6.

   Give any two components of following mixtures:

   1. Air ____________, ____________
   2. Smoke __________, ___________
   3. Gun powder ___________, ___________
   4. Brass _____________, _____________