MCQ
Which element can have oxidation state from $4 $ to $6 $?
- A$Fe$
- B$Mg$
- C$Co$
- ✓$Cr$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$N{H_4}^ + + {S^{ - 2}} \rightleftharpoons N{H_3} + H{S^ - }$
$[CH_3CH(CH_3)]_2 \,C(CH_2CH_3)C(CH_3) C(CH_2CH_3)_2$
(image)
($1$) The compound $R$ is
(image)
($2$) The compound $S$ is
(image)
Give the answer or quetion ($1$) and ($2$)