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प्रश्न
State the type of element for the following:
Platinum
विकल्प
Metal
Non-metal
Metalloid
Noble gas
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उत्तर
Metal
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संबंधित प्रश्न
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Magnetic separation
An element which can exhibit valencies of 2, 4 and 6 can be :
Match the symbols of – radicals – with their correct combining power or capacity, (valency).
(a) OH
(b) So4
(c) No3
(d) Co3
Combining power or capacity – A : 3; B : 2; C : 1. (negative valencies)
State the type of element for the following:
Xenon
State the type of element for the following:
Antimony
State the type of element for the following:
Bromine
Give the symbol of the following element:
Sulphite
Write the chemical formula of the following:
zinc oxide
Give the formula of the following gas:
Nitrogen dioxide
Which of the following symbols of elements are incorrect? Give their correct symbols
- Cobalt CO
- Carbon c
- Aluminium AL
- Helium He
- Sodium So
