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प्रश्न
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Chloride
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उत्तर
The valency of metal M is 3. So, the formulae are as follows:
Chloride - MCl3
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संबंधित प्रश्न
Write the names and symbols of the first twenty elements that you have studied in class VI & VII.
State the type of element for the following:
Carbon
State the type of element for the following:
Chlorine
Give the symbol of the following element:
Phosphate
Write the radical of the following valency:
Nitrate
Select the correct answer from the choice in the bracket.
The formula of caustic soda.
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Lead
write symbol with the variable valency
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).
Hydroxide
Complete the statement given below by filling in the blanks with the correct words.
From the elements – He, Br, Pt and O; the element which forms a polyatomic molecule is ________ and which is liquid at room temperature is ________.
What is the significance of the symbol of an element?
