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प्रश्न
What are ionic and molecular compounds? Give examples.
उत्तर
Maim Ionic compounds are made up of ions. An ionic compound contains a cation which is a positive ion and an anion which is a negative ion e.g., sodium chloride is an ionic compound made up of Na+ and Cl– ions.
A molecular compound is made up of molecules e.g. ammonia (NH3), carbon dioxide (CO2).
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संबंधित प्रश्न
Calculate the molecular mass of CH3OH.
What is the significance of the formula H2O ?
Calculate the molecular mass of chloroform (CHCl3). (Atomic masses : C = 12 u ; H = 1 u ; Cl = 35.5 u)
Calculate the molecular mass of hydrogen bromide (HBr). (Atomic masses : H = 1 u ; Br = 80 u)
Convert 12 g of oxygen gas into moles.
Calculate the molecular mass of the following:
CuSO4·5H2O
Given atomic mass of Cu = 63·5, H = 1, O = 16, C=12, N = 14, Mg = 24, S = 32
Calculate the relative molecular masses of the following
CHCI3
[At mass : C = 12, H = 1, O = 16, Ci = 35.5, N = 14, Cu = 63.5, S = 32, K = 39, Pt = 195, Ca = 40, P = 31, Mg = 24]
Calculate:
The volume of 4g of H2 at 4 atmosphere.
Calcium carbonate is decomposed on heating in the following reaction
CaCO3 → CaO + CO2
How many moles of CO2 are there in this equation?
Write the name of the following compound and deduce its molecular mass.
CO2
