Advertisements
Advertisements
Question
Name: a Metal Which is a Poor Conductor of Electricity.
Advertisements
Solution
Tungsten
APPEARS IN
RELATED QUESTIONS
Choose the most appropriate answer
A solvent of Iodine is
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
|
f .handpicking |
Give one example for the following types of mixtures :
misicible liquids
Name: a Non-metal Which is a Good Conductor of Electricity.
Define: Atom
Give reason: Graphite is used to make a lead of the pencils.
Indicate whether the following statement is true or false:
Elements are made up of compounds
Elements are classified into – Metals – Non-metals – Metalloids – Noble gases. State which of A, B, C, D is a –
1. Metallic element
2. Non-metallic element
3. Metalloid
4. Noble gas.
A: Is non-malleable, non-ductile & a poor conductor of electricity ___________
B: Has lustre, is malleable and ductile & a good conductor of heat ___________
C: Is unreactive and inert and present in traces in the air _________
D: Shows properties of both metals and non-metals ___________
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are coloured.
Name a non-metal which is required for combustion.
