JEE Mains Model Paper 25
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Question : 36 of 90
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Identify the correct statements among the following
I = Boric acid is a weak Lewis acid
II = diborane contains four 3–centre – 2 – electron bonds and two 2 – centre – 2 – electronbonds
III = Two important man made silicates are glass and cement
IV = The chain length of silicone polymer can be controlled by addingM e 3 S i C l
I = Boric acid is a weak Lewis acid
II = diborane contains four 3–centre – 2 – electron bonds and two 2 – centre – 2 – electronbonds
III = Two important man made silicates are glass and cement
IV = The chain length of silicone polymer can be controlled by adding
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