MCQ
Silicate contains ……….. silicon and oxygen in units.
- ✓$\left[ SiO _2\right]^{4-}$
- B$\left[ SiO _2\right]$
- C$\left[ SiO _2\right]^{2-}$
- D$\left[ SiO _2\right]^{-}$
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| Column - I | Column - II |
| A. $CH _3 CN \underset{ C _2 H _5 OH }{\stackrel{ Na ( Hg )}{\longrightarrow}}$ ? | 1. $CH _3 NH CH _3$ |
| B. $CH _3 NC \underset{ C _2 H _5 OH }{\stackrel{ Na ( Hg )}{\longrightarrow}}$ ? | 2. $CH _3 NH _2$ |
| C. $CH _3 CONH _2 \stackrel{ Br _2 / KOH }{\longrightarrow}$ ? | 3. $C _6 H _5 NH _2$ |
| D. $C _6 H _5 NO _2 \stackrel{ Sn / HCl }{\longrightarrow}$ ? | 4. $CH _3 CH _2 NH _2$ |