Advertisements
Advertisements
प्रश्न
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
विकल्प
True
False
Advertisements
उत्तर
True
APPEARS IN
संबंधित प्रश्न
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 applications of chromatography.
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Define: Molecule
State the number of atoms of each element, present in \[\ce{HNO3}\].
Also name the compound.
Name: Three different forms of carbon
Find the atomicity of the Following molecule:
Aluminium Suiphide
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
‘The modern periodic table consists of elements arranged according to their increasing atomic numbers’. With reference to elements with atomic numbers 1 to 20 only in the periodic table – differentiate them into – metallic elements, metalloids, non-metals & noble gases.
Differentiate metals and non-metals.
