MCQ
Which of the following is coloured
- A$ScC{l_3}$
- B$Ti{O_2}$
- ✓$MnS{O_4}$
- D$ZnS{O_4}$
due to presence of unpaired electrons it will form coloured salt.
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$3Br_2 + 6CO_3^{2-} + 3H_2O \longrightarrow 5Br^-+ BrO_3^-+ 6HCO_3^-$
Which of the following statements is true regarding this reaction
$\left[\right.$ Given $\left.: \log _{10} 2=0.301, \ln 10=2.303\right]$
| Column$-I$ | Column$-II$ |
| $(a)\;Co^{+3}$ | $(i)\;\sqrt{8}\; B.M.$ |
| $(b)\;Cr^{+3}$ | $(ii)\;\sqrt{35}\; B.M.$ |
| $(c)\;Fe^{+3}$ | $(iii)\;\sqrt{3}\; B.M.$ |
| $(d)\;Ni^{+2}$ | $(iv)\;\sqrt{24}\; B.M.$ |
| $(v)\;\sqrt{15}\; B.M.$ |
$(a)\quad (b)\quad (c)\quad (d)$