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प्रश्न
Give the formula of the following acid:
Hydrochloric
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उत्तर
Hydrochloric – HCI
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Match the symbols of metallic elements – with their correct combining power or capacity.
(a) K
(b) Zn
(c) Al
(d) Na
(e) Ca
Combining power or capacity – A : 3 ; B : 2 ; C : 1. (positive valencies)
Give the symbol of the following element:
Antimony
State the type of element for the following:
Lead
State the type of element for the following:
Platinum
Write the radical of the following valency:
Zinc
Give the formula of the following acid:
Sulphuric
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).
Sulphate
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).
Zincate
