MCQ
The $IUPAC$ name of crotonaldehyde is
- AProp $-2-$ ene $-1-$ al
- BPropenal
- ✓But $-2-$ ene $-1-$ al
- DButenal
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$(A)\,Cu$ $(II)$ complexes are always paramagnetic
$(B)\,Cu$ $(I)$ complexes are generally colourless
$(C)\,Cu$ $( I )$ is easily oxidized
$(D)$ In Fehling solution, the active reagent has $Cu$ $( I )$
