CSEC Chemistry · May/June 2015 · Paper 1 · Question Q10
A new element, R, shows chemical properties similar to the element sodium. What is the correct formula of a compound formed with R and sulfur?
- (A)
\text{RS}_2 - (B)
\text{RS} - (C)
\text{R}_2\text{S} - (D)
\text{R}_2\text{S}_2
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