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प्रश्न
Write the chemical formula of the following:
magnesium sulphate
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उत्तर
MgSO4
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
What is meant by atomicity? Name the diatomic element.
For writing a chemical formula – ‘symbols’ and combining capacity of an element with hydrogen i.e. ‘valency’ should be known. Explain the term – combining the capacity of an element i.e. valency.
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
Give the symbol of the following element:
Antimony
State the type of element for the following:
Copper
State the type of element for the following:
Antimony
Write the radical of the following valency:
Bromine [Bromide]
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Chloride
What is meant by the term ‘symbol’?
