MCQ
Which of the following is not halide ore ?
- ACryolite
- BFluorspar
- CHorn silver
- ✓Limonite
$5 I _2 O _4 \rightarrow 4 I _2 O _5+ I _2$
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$(a)$ Heated : it is charred
$(b)$ $I_2$ solution : no violet colour
$(c)$ Fehling solution : reddish brown ppt. is observed
$(d)$ It does not reduce copper$(II)$ acetate to $Cu_2O$ . No red precipiated is observed in $5/ min$
The carboxylate which satisfy all the above observation
$\begin{array}{*{20}{c}}
{C{H_3} - C = CH - C{H_2}C{H_3}} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{CH{{(C{H_3})}_2}\,\,\,\,\,\,\,\,\,\,}
\end{array}\xrightarrow[{(ii)\,{H_2}{O_2},O{H^ - }}]{{(i)\,{B_2}{H_6}}}[A]$$\xrightarrow[\Delta ]{{dil.\,{H_2}S{O_4}}}[B]$
Which of the following statement would be correct?
$[{R_H} = 1 \times {10^5}\,c{m^{ - 1}},\,h\, = 6.6\, \times {10^{ - 34}}\,Js\,\,c = 3\, \times \,{10^8}\,m{s^{ - 1}}]$