An element $X$ reacts with oxygen to form a compound $X_2O_3$. If the atomic mass of $X$ is $91.5$,the equivalent mass of $X$ is:
- A$30.5$
- B$45.75$
- C$61$
- D$91.5$
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Similar Questions
Match column $-I$ and column $-II$ with the correct molar mass values:
Column $-I$ Column $-II$ $(i)$ Barium sulphate $(a)$ $1877 \ g/mol$ $(ii)$ Magnesium pyrophosphate $(b)$ $235 \ g/mol$ $(iii)$ Ammonium phosphomolybdate $(c)$ $188 \ g/mol$ $(iv)$ Silver chloride $(d)$ $222 \ g/mol$ $(v)$ Silver bromide $(e)$ $143.5 \ g/mol$ $(vi)$ Silver iodide $(f)$ $233 \ g/mol$
| Column $-I$ | Column $-II$ |
| $(i)$ Barium sulphate | $(a)$ $1877 \ g/mol$ |
| $(ii)$ Magnesium pyrophosphate | $(b)$ $235 \ g/mol$ |
| $(iii)$ Ammonium phosphomolybdate | $(c)$ $188 \ g/mol$ |
| $(iv)$ Silver chloride | $(d)$ $222 \ g/mol$ |
| $(v)$ Silver bromide | $(e)$ $143.5 \ g/mol$ |
| $(vi)$ Silver iodide | $(f)$ $233 \ g/mol$ |
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