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प्रश्न
State two important uses of following non-metal
iodine
उत्तर
Uses of iodine :
- Tincture of iodine is used for dressing wounds.
- Small quantities of iodine as sodium iodide or potassium iodide are extremely essential for the proper functioning of human body. It is used in the form of iodized salt.
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संबंधित प्रश्न
Name the gas that is produced in the given case:
The reaction of ethanol and sodium.
Name one metal which has a low melting point.
Name one metal which is stored in kerosene oil.
State any five physical properties of metals.
Name two physical properties of carbon in which it's behaviour is not as expected from it's classification as non-metal.
Metals are said to be shiny. Why do metals generally appear to be dull? How can their brightness be restored?
State any three differences between the physical properties of metals and non-metals.
Name the non-metal present in abundance in the earth's crust.
Name:
a non- metal used in alloys
Select from the following ist:
`Fe_2O_3, , NO, PbO, Mn_2O_7`
Basic oxide………..
Select from the following ist:
`Fe_2O_3, , NO, PbO, Mn_2O_7`
Neutral oxide ……………..
Name:
the most abundant metal and the most abundant non=metal
In which of the following industries, microbial enzymes are not used?
a) Glass industry.
b) Cheese industry
c) Tanning industry.
d) Paper industry.
Complete the table.
| Property of metal | Use in everyday life |
| i. Ductility | |
| ii. Malleability | |
| iii. Conduction of heat | |
| iv. Conduction of electricity | |
| v. Sonority |
Write scientific reason.
Sodium metal is kept in kerosene.
Complete the statement given below, by filling in the blank with the correct word:
A non-metal which allows an electric current to pass through it ______.
______ is the only non-metal which conducts electricity.
The atomic number of an element ‘X’ is 12. Which inert gas is nearest to X?
Generally, non-metals are not lustrous. Which of the following non-metal is lustrous?
