MCQ
The mass number is same as __________.
- AAtomic mass number.
- BMolecular mass number.
- CBoth a and b.
- DNone of the above.
Explanation:
The mass number should also not be confused with the relative atomic mass (also called atomic weight) of an element, which is the ratio of the average atomic mass of the different isotopes of that element (weighted by abundance) to the unified atomic mass unit.
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A graph is plotted between concentration and time as shown. Effect$-1$ & Effect$-2$ are due to respectively
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$2CO + {O_2} \to 2C{O_2};\,\Delta H = - 569\,kJ\,mo{l^{ - 1}}$ The heat of formation of $1\,mol$ of carbon monoxide is thus .....$kJ\,mo{l^{ - 1}}$