Advertisements
Advertisements
प्रश्न
Which of the following is a short and scientific way of representing one molecule of an element or compound?
विकल्प
Mathematical formula
Chemical formula
Mathematical symbol
Chemical symbol
Advertisements
उत्तर
Chemical symbol
APPEARS IN
संबंधित प्रश्न
Give the name of the element present in the following compound:
Potassium sulphate
Define: Atomic weight :
What is the atomicity of the following ?
- Oxygen
- Ozone
- Neon
- Sulphur
- Phosphorus
- Sodium
In what form do noble gases 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 ?
Correct the following statement:
A molecule of sulphur is monoatomic.
Give one example of a triatomic molecule
State the atomicity of the following:
Argon
The Atomicity of phosphorous is ______
Two elements sometimes can form more than one compound.
