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प्रश्न
Work out the formula for magnesium hydrogencarbonate.
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उत्तर
Valency of Magnesium = 2
Valency of hydrogen carbonate ion = −1
Elements/ Ions: Gg HCO3
Formula for Magnesium hydrogen carbonate can be worked out by
Therefore, formula for Magnesium hydrogen carbonate is: Mg(HCO3)2.
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संबंधित प्रश्न
Write down the name of a compound represented by the following formula:
K2SO4
Define: Mass number :
What is the atomicity of the following ?
- Oxygen
- Ozone
- Neon
- Sulphur
- Phosphorus
- Sodium
One of the forms of a naturally occurring solid compound P is usually used for making the floors of houses. On adding a few drops of dilute hydrochloric acid to P, brisk effervescence are produced. When 50 g of reactant P was heated strongly, than 22 g of a gas Q and 28 g of a solid R were produced as products. Gas Q is the same which produced brisk effervescence on adding dilute HCl to P. Gas Q is said to cause global warming whereas solid R is used for white-washing.
- What is (i) solid P (ii) gas Q, and (iii) solid R.
- What is the total mass of Q and R obtained from 50 g of P ?
- How does the total mass of Q and R formed compare with the mass of P taken ?
- What conclusion do you get from the comparison of masses of products and reactant ?
- Which law of chemical combination is illustrated by the example given in this problem ?
Give one example of a triatomic molecule
Give one example of a polyatomic molecule.
Give a reason why –
Ozone is considered triatomic, but phosphorus a tetratomic molecule.
State the atomicity of the following:
Chlorine
State the atomicity of the following:
Sulphur
The Atomicity of phosphorous is ______
