JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
\(116\, g\) of a substance upon dissociation reaction, yields \(7.5 \,g\) of hydrogen, \(60 \,g\) of oxygen and \(48.5\, g\) of carbon. Given that the atomic masses of \(H , O\) and \(C\) are \(1,16\) and \(12\) respectively. The data agrees with how many formulae of the following? \((A)\) \(CH _{3} COOH\) \((B)\) \(HCHO\) \((C)\) \(CH _{3} OOCH _{3}\) \((D)\) \(CH _{3} CHO\)
- A \(4\)
- B \(3\)
- C \(2\)
- D \(1\)
Answer & Solution
Correct Answer
(C) \(2\)
Step-by-step Solution
Detailed explanation
\(\% H =\frac{7.5}{116} \times 100=6.5\) \(\% O =\frac{60}{116} \times 100=51.7\) \(\% C =\frac{48.5}{116} \times 100=41.8\) Relative atomicities \(=\) \(H \Rightarrow 6.5\) \(O \Rightarrow \frac{51.7}{16}=3.25\) \(C \Rightarrow \frac{41.8}{12}=3.5\) Emperically formula is…
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