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प्रश्न
Write the formula of the following compound:
Potassium dichromate
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उत्तर
Potassium dichromate - K2Cr2O7 - `"K"^1["Cr"_2"O"_7]^(2-)`
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संबंधित प्रश्न
Write down the formula of aluminium chloride.
The atomicities of ozone, sulphur, phosphorus and argon are respectively :
Write down the formulae for the following compounds :
Magnesium hydroxide
Name the following compounds. Also write the symbols/formulae of the ions present in them :
- CuSO4
- (NH4)2SO4
- Na2O
- Na2CO3
- CaCl2
Give the formula and valency of:
aluminium ………………. .
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 |
Name the element in the compound and give the formula of the following compound:
Glauber’s salt
Write the formula of the following compound:
Potassium aluminate
Write the formula of the following compound:
Potassium hydroxide
Write the formula of the following compound:
Sodium bisulphate
Write the formula of the following compound:
Magnesium oxide
Write the formula of the following compound:
Copper [I] sulphide
Write the formula of the following compound:
Iron [II] chloride
Write the formula of the following compound:
Diamine silver chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
(NH4)3SO4
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaCO3
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaO
Write the chemical formula for the following compounds
- Aluminium sulphate
- Silver nitrate
- Magnesium oxide
- Barium chloride
Write the molecular formulae of all the compounds that can be formed by the combination of the following ions
Cu2+, Na+, Fe3+, C1– , `"SO"_4^-2`, `"PO"_4^3-`
