Choose or find odd pair of words - (Flower : Petal) , (Chair : Leg) , (Circle : Arc) , (Cover : Page)

D. COVER : PAGE

Choose or find odd letter group - DAH , IFM , ROV , QNT , SPW

D. QNT

Choose or find odd word - Mercury , Bromine , Aluminium , Sodium , Titanium

B. BROMINE

Choose or find odd word - Ranthamboor , Sunderban , Kaziranga , Ghana , Corundum

E. CORUNDUM

Choose or find odd word - Microscope , Telescope , Periscope , Stethoscope

D. STETHOSCOPE