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प्रश्न
Identify the following substance:
A brown gas D with the irritating smell.
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उत्तर
Nitrogen dioxide.
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संबंधित प्रश्न
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
What is meant by a chemical formula ? Write the formulae of one element and one compound.
Explain the difference between 2N and N2.
(a) Write the symbols/formulae of two simple ions and two compound ions (or polyatomic ions).
Define ‘formula unit’ of an ionic compound. What is the formula unit of (i) sodium chloride, and
(ii) magnesium chloride ?
The formula of a compound is X3Y. The valencies of elements X and Y will be respectively :
Give the formula and valency of:
cupric ………………… .
Give the empirical formula of : Benzene C6H6
Identify the following substance:
Gas C that is colourless and can be used as a bleaching agent.
Name the element in the compound and give the formula of the following compound:
Glauber’s salt
Name the element in the compound and give the formula of the following compound:
Ethanol
Write the formula of the following compound:
Potassium dichromate
Write the formula of the following compound:
Zinc sulphate
Write the formula of the following compound:
Aluminium chloride
Write the formula of the following compound:
Copper [II] chloride
Write the formula of the following compound:
Copper [II] sulphide
Write the formula of the following compound:
Iron [II] chloride
Write the formula of the following compound:
Lead [II] oxide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaClO
Write the molecular formulae for the following compounds
Iron (III) sulphide
