MCQ
Ethyl orthoformate is formed by heating with sodium ethoxide
- ✓$CHC{l_3}$
- B${C_2}{H_5}OH$
- C$HCOOH$
- D$C{H_3}CHO$

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$(I)$ They have high melting points, higher than those of pure metals
$(II)$ They are very hard
$(III)$ They retain metallic conductivity
$(IV)$ They are chemically more reactive than the pure metals
$(I)$ $-OAc$ $(II)$ $-OMe$
$(III)$ $-O-SO_2-Me$ $(IV)$ $-O-SO_2-CF_3$
The order of leaving power is :