MCQ
Nitration of benzoic acid gives
- ✓$3-$nitrobenzoic acid
- B$2-$nitrobenzoic acid
- C$2, 3-$dinitrobenzoic acid
- D$2, 4-$dinitrobenzoic acid
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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 $Cu$ $( I )$