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प्रश्न
Write the radical of the following valency:
Zinc
विकल्प
1+
2+
3+
1−
2−
3−
MCQ
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उत्तर
2+
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संबंधित प्रश्न
What do you understand by :
Noble gases
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What is a symbol? What information does it convey?
What do the following symbol stand for?
H2
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Oxide
Match the non-metallic elements – with their correct symbols. Non-metallic elements are:
| Non-Metallic elements | Symbol |
| (a) Carbon | (1) O |
| (b) Chlorine | (2) I |
| (c) Oxygen | (3) Si |
| (d) Phosphorus | (4) C |
| (e) Hydrogen | (5) Cl |
| (f) Nitrogen | (6) P |
| (g) Iodine | (7) F |
| (h) Bromine | (8) H |
| (i) Fluorine | (9) S |
| (j) Silicon | (10) Br |
| (k) Sulphur | (11) N |
State the type of element for the following:
Lead
Write the radical of the following valency:
Carbonate
Give the qualitative and quantitative meaning of the term ‘symbol’.
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
