JEE Mains · Chemistry · STD 12 - 7. Alcohol, phenol and ethers
A \(1.84\,mg\) sample of polyhydric alcoholic compound ' \(X\) ' of molar mass \(92.0\,g / mol\) gave \(1.344\,mL\) of \(H _{2}\) gas at \(STP\). The number of alcoholic hydrogens present in compound ' \(X\) ' is \(.....\)
- A \(6\)
- B \(5\)
- C \(4\)
- D \(3\)
Answer & Solution
Correct Answer
(A) \(6\)
Step-by-step Solution
Detailed explanation
\(R ( OH )_{ x } \rightarrow H _{2}\) \(PoAC\) on \(H -\) \(x\left(\frac{1.84 \times 10^{-3}}{92}\right)=\frac{1.344}{22.4} \times 2\) \(x=\frac{1.344 \times 2 \times 92 \times 1000}{1.84 \times 22400}=6\) \(x=6\)
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