MCQ
Formaldehyde and formic acid can be distinguished using
- ATollen's reagent
- BFehling solution
- CFerric chloride
- ✓Sodium bicarbonate
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Reason $R:$ The increasing nuclear charge outweighs the shielding across the period.
In the light of the above statements, choose the most appropriate from the options given below:
$Pt:\frac{1}{2}\,{H_2}\left( g \right)\,|{H^ + }\left( {{{10}^{ - 8}}\,M} \right)||{H^ + }\,\left( {{{10}^{ - 3}}\,M} \right)|\frac{1}{2}\,{H_2}\left( g \right)\,;Pt$
Reason: The electrical conductivity of metals is due to motion of electrons.
$[Cr(NH_3)_6] [Cr(NO_2)_6]$ and $[Cr(NH_3)_4(NO_2)_2] \,[Cr(NH_3)_2(NO_2)_4]$