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प्रश्न
Find the atomicity of the Following molecule:
Aluminium Suiphide
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उत्तर
Atomicity of
Aluminium Suiphide- (NH4)2S
= (1+4) X 2+1 x 1= 2 + 8 +1 = 11
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संबंधित प्रश्न
Tick the most appropriate answer.
The constituents of a mixture are present in
- a fixed ratio
- a variable ratio,
- the ratio of 2: 1
- none of these
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 |
Name: a Liquid Non-metal
What is meant by 2H and H2
Fill in the blank
The most abundant element in the earth’s crust is _______.
Fill in the blank
A liquid non-metal is _______.
Complete the statement given below by filling in the blank with the correct word.
The basic unit of an element is an __________.
Complete the statement given below by filling in the blank with the correct word.
Element ______ has the symbol derived from its Latin name ‘Argentum’
What are elements? What are they made of?
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 other than carbon that shows allotropy.
