Advertisements
Advertisements
प्रश्न
Give the name of the element present in the following compound:
Potassium sulphate
Advertisements
उत्तर
- Compound - Potassium sulphate
- Chemical formula - K2SO4
- Elements present - Potassium, Sulphur, Oxygen
APPEARS IN
संबंधित प्रश्न
Define: Atomic number
Define: Mass number :
In what form does oxygen gas occur in nature ?
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 ?
Work out the formula for magnesium hydrogencarbonate.
Calculate the mass of 3.011 × 1024 atoms of carbon.
State the atomicity of the following:
Argon
State the atomicity of the following:
Sulphur
State true of false. If false, give the correct statement.
NaCl represents one molecule of sodium chloride.
Write any two classifications of a molecule.
