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प्रश्न
The formula of the sulphate of an element M is M2(SO4)3
Write the formula of it
Phosphate
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उत्तर
Phosphate - M(PO4)
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संबंधित प्रश्न
Write true or false
Milk is an emulsion.
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
Match the noble gases – with their correct symbols:
| Noble gases | Symbols |
| (a) Helium | (1) Ar |
| (b) Neon | (2) Xe |
| (c) Argon | (3) Rn |
| (d) Krypton | (4) He |
| (e) Xenon | (5) Kr |
| (f) Radon | (6) Ne |
Match the symbols of – radicals – with their correct combining power or capacity, (valency).
(a) OH
(b) So4
(c) No3
(d) Co3
Combining power or capacity – A : 3; B : 2; C : 1. (negative valencies)
Give the symbol of the following element:
Phosphorus
Give the symbol of the following element:
Hydroxide
Write the chemical formula of the following:
calcium sulphide
Give a reason – Magnesium [2, 8, 2] has valency 2+.
State the valency of the following metallic element and write symbol with the valency
Magnesium
Fill in the blank with the correct word from the options given below:
A symbol represents a short form of a / an ________.
