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प्रश्न
Define: Compounds
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उत्तर
Compounds : A compound is a pure substance formed by the chemical combination of two or more elements in a fixed ratio by mass.
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संबंधित प्रश्न
The symbol of a metal element which is used in making thermometers is :
The formula of the sulphate of an element X is X2(SO4)3. The formula of nitride of element X will be :
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of its
Acetate
Give the symbol and the number of atoms of the following elements present in carbon dioxide.
Give the symbol and the number of atoms of the following elements present in zinc chloride.
Give the symbol of the following element:
Oxygen
Give the symbol of the following element:
Aluminium
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).
Iodide
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 ________.
Symbol of mercury is
