MCQ
Subunits present in haemoglobin are
- A$2$
- B$3$
- ✓$4$
- D$5$
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$b. NH_3 < PH_3 < AsH_3$ Reducing power
$c. NI_3 > NBr_3 > NCl_3$ Lewis basic character
$d. N_2O_5 > P_2O_5 > As_2O_5$ Acidic character
Correct order is