Which of the following have X—O—X linkage? (where X is central atom) : (i) Cr2O7^2- (ii) S2O3^2- (ii — Chemical Bonding Chemistry Question
Question
Which of the following have X—O—X linkage? (where X is central atom) : (i) Cr2O7^2- (ii) S2O3^2- (iii) Pyrosilicate (iv) Hyponitrous acid
Answer: A
💡 Solution & Explanation
Step 1: Compare the bond angles: H2O (104.5°), F2O (~103°), Cl2O (~111°), and H2S (~92°). Step 2: In Cl2O, the chlorine atoms are very large and electronegative, causing strong steric and electrostatic repulsions between the two bulky chlorine atoms. Step 3: This severe steric crowding forces the Cl-O-Cl bond angle to open up significantly (~111°), making it the largest among the options. Thus, option (c) is correct.
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