MCQ
Which statement is correct in the following
- A$NH_3 > NF_3$ : bond angle
- B$NH_3 > NF_3$ : reactivity towards lewis acid
- C$NH_3 > NF_3$ : Dipole moment
- ✓All are correct
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| Aspects | Metal |
| $(a)$ The metal which reveals a maximum number of oxidation states | $(i)$ Scandium |
| $(b)$ The metal although placed in $3 d$ block is considered not as a transition element | $(ii)$ Copper |
| $(c)$ The metal which does not exhibit variable oxidation states | $(iii)$ Manganese |
| $(d)$ The metal which in $+1$ oxidation state in aqueous solution undergoes disproportionation | $(iv)$ Zinc |
Select the correct option