Question

Q=1 State the low of constant proportion
Q=2 Define molar mass what are it's units
Q=3 what are canal rays

Answer 1

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1. ➡ The Law Of Constant Proportion states that " In a chemical substance the elements are always present in definite proportions by mass. This law was stated by Joseph L. Proust.

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3. ➡ E. Goldstein in 1886 discovered the presence of new radiations in a gas discharge and called them as CANAL RAYS.

2. ➡ Molar mass is defined as the mass of a given substance divided by the amount of substance. The SI unit of molar mass is Kg / mol.


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