Which phrase would be incorrect to use?

  • A
    $A$ molecular of a compound
  • B
    $A$ molecule of an element
  • C
    An atom of an element
  • D
    None of these

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Sulfur reacts with chlorine to form $S_2Cl_2$ and $SCl_2$. The equivalent mass of sulfur in $SCl_2$ is ................. $g/mol$.

Calculate the molecular mass of the following:
$(i)$ $H_{2}O$
$(ii)$ $CO_{2}$
$(iii)$ $CH_{4}$

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Many elements have non-integral atomic masses because:

The specific heat of a metal is $0.16$,its approximate atomic weight would be

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The average molar mass of chlorine is $35.5 \ g \ mol^{-1}$. The ratio of $^{35}Cl$ to $^{37}Cl$ in naturally occurring chlorine is close to : (in $:1$)

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