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प्रश्न
Write the chemical formula of the following:
zinc oxide
एक शब्द/वाक्यांश उत्तर
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उत्तर
ZnO
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संबंधित प्रश्न
Give two examples of the following:
Liquid + Liquid mixture:
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 |
Give a reason why elements are tabulated in a table called the ‘Periodic table’.
State which element exists in the highest percentage in atmosphere.
Give the symbol of the following element:
Neon
State the type of element for the following:
Oxygen
State the type of element for the following:
Phosphorus
Give the formula of the following acid:
Hydrochloric
What does a chemical symbol represent?
Antimony has the highest tensile strength.
