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प्रश्न
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उत्तर
Potassium bisulphate - KHSO4 - `"K"^1["HSO"_4]^(1-)`
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संबंधित प्रश्न
Write down the formula of aluminium chloride.
The element having atomicity 'four' is most likely to be :
An element X has a valency of 4 whereas another element Y has a valency of 1. What will be the formula of the compound formed between X and Y ?
An element X of valency 3 combines with another element Y of valency 2. What will be the formula of the compound formed ?
Give the formula and valency of:
| Aluminate | ______ | ______ |
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Give the empirical formula of Acitic Acid CH3COOH.
Match the following:
| Column A | Column B |
| (a) Pb(NO3)2 | (i) rotten eggs smell |
| (b) CO2 | (ii) burns with a pop sound |
| (c) (NH4)2Cr2O7 | (iii) the suffocating smell of sulphur |
| (d) HCI | (iv) lime water turns milky |
| (e) NO2 | (v) crackling sound |
| (f) O2 | (vi) residue swells up |
| (g) H2 | (vii) brown gas |
| (i) H2S | (viii) supports combustion |
| (j) SO2 | (ix) fumes with NH3 solution |
Write the formula of the following compound:
Potassium nitrite
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium permanganate
Write the formula of the following compound:
Magnesium hydroxide
Write the formula of the following compound:
Magnesium oxide
Write the formula of the following compound:
Zinc sulphate
Write the formula of the following compound:
Copper [II] sulphide
Write the formula of the following compound:
Iron [III] sulphate
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaZnO2
Write the molecular formulae for the following compounds
Copper (II) bromide
There are ______ hydrogen atoms in water molecule.
Play a game for writing formula.
Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.
For example:
The formula for sodium sulphate:
2 sodium ions can be fixed on one sulphate ion.
Hence, the formula will be Na2SO4.
Do it yourself:
Now, write the formula of sodium phosphate.
