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प्रश्न
State what are radicals. Give the names of the radicals –
(a) NO3
(b) OH
(c) SO4
(d) CO3
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उत्तर
A radical is an atom or group of an atom of the same or different elements that behave in the manner of positive or negative ions.
(a) NO3 – nitrate
(b) OH – hydroxide
(c) SO4 – sulphate
(d) CO3 – carbonate
संबंधित प्रश्न
Give the symbols of: Carbon, calcium, copper, chlorine, cobalt, argon.
Find the atomicity of the Following molecule:
Calcium Chloride
Indicate whether the following statement is true or false:
A compound is made up of just one kind of atom
The important physical properties of substances are colour, odour, nature, density & solubility in water.
Name – a gas with a pungent, choking odour which is lighter than air
Draw a labelled diagram of an atom including its nucleus, orbits & their contents.
Write the names of elements from the following symbol:
Br
Define the terms elements, compounds & mixtures with a view to show their basic difference.
Give an example of two liquids that form heterogeneous mixtures.
Non-metal conducting electricity :______ :: Metal conducting electricity : Copper
Elements : Combine to form compounds :: Compounds : ______.
