Advertisements
Advertisements
Question
Select the correct answer from the choice given below.
The unreactive non-metallic element
Options
chlorine
argon
sulphur
Advertisements
Solution
argon
RELATED QUESTIONS
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 two examples of Non-metals.
Name: Three different forms of carbon
Give one use of the following substance:
Iron
Answer the following question:
What do you understand by the statement: ‘metals are ductile and malleable’?
Indicate whether the following statement is true or false:
Molecules can exist independently.
Write the names of elements from the following symbol:
Xe
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
Match the separation of components in List I with the most appropriate process in List II.
| List I | List II |
| 1. Naphthalene from naphthalene & sodium chloride. | A: Separating funnel |
| 2. Cream from milk. | B: Sublimation |
| 3. Kerosene oil from kerosene oil & water. | C: Boiling |
| 4. Lead nitrate from an aqueous solution of lead nitrate. | D: Centrifugation |
| 5. Ammonia from an aqueous solution of ammonia. | E: Distillation |
Name the element which is used in toothpaste to strengthen our teeth.
