Find no. of molecules in which at least two similar atoms are bonded to each other. white phosphorus, rhombic sulphur, N 2 O ; pyrosilicate, trisilyl amine, Peroxy disulphuruic acid ; dithionic acid

Question

Find no. of molecules in which at least two similar atoms are bonded to each other. white phosphorus, rhombic sulphur, N 2 ​ O ; pyrosilicate, trisilyl amine, Peroxy disulphuruic acid ; dithionic acid ; γ − SO 3 ​ .

TestHub · Accepted Answer

We need to identify molecules with at least two similar atoms bonded.

1. White phosphorus (P₄): P-P bonds are present.

2. Rhombic sulfur (S₈): S-S bonds are present.

3. N₂O: N-N bond is present (N=N=O).

4. Pyrosilicate ( $S i_{2} O_{7}^{6 -}$ ): Si-O-Si, no Si-Si or O-O.

5. Trisilylamine ( $(S i H_{3})_{3} N$ ): Si-N-Si, no Si-Si or N-N.

6. Peroxodisulfuric acid ( $H_{2} S_{2} O_{8}$ ): O-O bond is present (peroxy linkage).

7. Dithionic acid ( $H_{2} S_{2} O_{6}$ ): S-S bond is present.

8. $γ - S O_{3}$ : Cyclic trimer $(S O_{3})_{3}$ , no S-S or O-O.

Thus, 5 molecules (P₄, S₈, N₂O, $H_{2} S_{2} O_{8}$ , $H_{2} S_{2} O_{6}$ ) have at least two similar atoms bonded.

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